Zucchini Yellow Mosaic Virus-Weak Strain; Exemption from the Requirement of a Tolerance, 45649-45653 [E7-16057]
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Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Rules and Regulations
This final rule directly regulates
growers, food processors, food handlers
and food retailers, not States or tribes,
nor does this action alter the
relationships or distribution of power
and responsibilities established by
Congress in the preemption provisions
of section 408(n)(4) of FFDCA. As such,
the Agency has determined that this
action will not have a substantial direct
effect on States or tribal governments,
on the relationship between the national
government and the States or tribal
governments, or on the distribution of
power and responsibilities among the
various levels of government or between
the Federal Government and Indian
tribes. Thus, the Agency has determined
that Executive Order 13132, entitled
Federalism (64 FR 43255, August 10,
1999) and Executive Order 13175,
entitled Consultation and Coordination
with Indian Tribal Governments (65 FR
67249, November 6, 2000) do not apply
to this rule. In addition, This rule does
not impose any enforceable duty or
contain any unfunded mandate as
described under Title II of the Unfunded
Mandates Reform Act of 1995 (UMRA)
(Public Law 104–4).
This action does not involve any
technical standards that would require
Agency consideration of voluntary
consensus standards pursuant to section
12(d) of the National Technology
Transfer and Advancement Act of 1995
(NTTAA), Public Law 104–113, section
12(d) (15 U.S.C. 272 note).
VII. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., generally provides
that before a rule may take effect, the
Agency promulgating the rule must
submit a rule report to each House of
the Congress and to the Comptroller
General of the United States. EPA will
submit a report containing this rule and
other required information to the U.S.
Senate, the U.S. House of
Representatives, and the Comptroller
General of the United States prior to
publication of this final rule in the
Federal Register. This final rule is not
a ‘‘major rule’’ as defined by 5 U.S.C.
804(2).
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List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: August 1, 2007.
Debra Edwards,
Director, Office of Pesticide Programs.
Therefore, 40 CFR part 180 is
amended as follows:
I
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45649
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
(d) Indirect or inadvertent residues.
[Reserved]
[FR Doc. E7–15698 Filed 8–14–07; 8:45 am]
I
Authority: 21 U.S.C. 321(q), 346a and 371.
2. Section 180.631 is added to read as
follows:
BILLING CODE 6560–50–S
I
§ 180.631 Pyrasulfotole; tolerances for
residues.
(a) General. Tolerances are
established for residues of the herbicide
pyrasulfotole and pyrasulfotoledesmethyl, (5-hydroxy-1,3-dimethyl-1Hpyrazol-4-yl)[2-(methylsulfonyl)-4(trifluoromethyl)phenyl]methanone, and
its metabolite, 5-hydroxy-3-methyl-1Hpyrazol-4-yl) [2-methylsulfornyl)-4(trifluoromethyl)phenyl]methanone, in
or on the following agricultural
commodities:
Parts per
million
Commodity
Aspirated grain fractions ...........
Barley, grain .............................
Barley, hay ................................
Barley, straw .............................
Cattle, fat ..................................
Cattle, liver ................................
Cattle, meat ..............................
Cattle, meat byproducts, except
liver ........................................
Eggs ..........................................
Goat, fat ....................................
Goat, liver .................................
Goat, meat ................................
Goat, meat byproducts, except
liver ........................................
Hog, fat .....................................
Hog, meat .................................
Hog, meat byproducts ..............
Horse, fat ..................................
Horse, liver ...............................
Horse, meat ..............................
Horse, meat byproducts, except
liver ........................................
Milk ...........................................
Oat, forage ................................
Oat, grain ..................................
Oat, hay ....................................
Oat, straw .................................
Poultry, fat ................................
Poultry, meat ............................
Poultry, meat byproducts ..........
Rye, forage ...............................
Rye, grain .................................
Rye, straw .................................
Sheep, fat .................................
Sheep, liver ...............................
Sheep, meat .............................
Sheep, meat byproducts, except liver ................................
Wheat, forage ...........................
Wheat, grain .............................
Wheat, hay ...............................
Wheat, straw .............................
0.40
0.02
0.30
0.20
0.02
0.35
0.02
0.06
0.02
0.02
0.35
0.02
0.06
0.02
0.02
0.02
0.02
0.35
0.02
0.06
0.01
0.10
0.08
0.50
0.20
0.02
0.02
0.02
0.20
0.02
0.20
0.02
0.35
0.02
0.06
0.20
0.02
0.80
0.20
(b) Section 18 emergency exemptions.
[Reserved]
(c) Tolerances with regional
registrations. [Reserved]
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ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2006–0329; FRL–8137–9]
Zucchini Yellow Mosaic Virus-Weak
Strain; Exemption from the
Requirement of a Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes an
exemption from the requirement of a
tolerance for residues of the zucchini
yellow mosaic virus-weak strain
(ZYMV-WK) on cucurbits, including,
cucumbers, cantaloupes, watermelons,
muskmelons, winter and summer
squash, pumpkins, zucchini and other
cucurbits when applied/used as a
viruscide to protect curcurbit crop
plants against severe strains of zucchini
yellow mosaic virus. Bio-Oz
Biotechnologies Limited submitted a
petition to EPA under the Federal Food,
Drug, and Cosmetic Act (FFDCA), as
amended by the Food Quality Protection
Act of 1996 (FQPA), requesting an
exemption from the requirement of a
tolerance. This regulation eliminates the
need to establish a maximum
permissible level for residues of ZYMVWK strain.
DATES: This regulation is effective
August 15, 2007. Objections and
requests for hearings must be received
on or before October 15, 2007, and must
be filed in accordance with the
instructions provided in 40 CFR part
178 (see also Unit I.C. of the
SUPPLEMENTARY INFORMATION).
ADDRESSES: EPA has established a
docket for this action under docket
identification (ID) number EPA–HQ–
OPP–2006–0329. To access the
electronic docket, go to https://
www.regulations.gov, select ‘‘Advanced
Search,’’ then ‘‘Docket Search.’’ Insert
the docket ID number where indicated
and select the ‘‘Submit’’ button. Follow
the instructions on the regulations.gov
web site to view the docket index or
access available documents. All
documents in the docket are listed in
the docket index available in
regulations.gov. Although listed in the
index, some information is not publicly
available, e.g., Confidential Business
Information (CBI) or other information
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whose disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the Internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available in the electronic docket at
https://www.regulations.gov, or,if only
available in hard copy, at the OPP
Regulatory Public Docket in Rm. S–
4400, One Potomac Yard (South Bldg.),
2777 S. Crystal Dr., Arlington, VA. The
Docket Facility is open from 8:30 a.m.
to 4 p.m., Monday through Friday,
excluding legal holidays. The Docket
Facility telephone number is (703) 305–
5805.
FOR FURTHER INFORMATION CONTACT: Gail
Tomimatsu, Biopesticides and Pollution
Prevention Division (7511P),
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 308–8543; e-mail address:
tomimatsu.gail@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
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A. Does This Action Apply to Me?
You may be potentially affected by
this action if you are an agricultural
producer, food manufacturer, or
pesticide manufacturer. Potentially
affected entities may include, but are
not limited to:
• Crop production (NAICS code 111).
• Animal production (NAICS code
112).
• Food manufacturing (NAICS code
311).
• Pesticide manufacturing (NAICS
code 32532).
This listing is not intended to be
exhaustive, but rather provides a guide
for readers regarding entities likely to be
affected by this action. Other types of
entities not listed in this unit could also
be affected. The North American
Industrial Classification System
(NAICS) codes have been provided to
assist you and others in determining
whether this action might apply to
certain entities. If you have any
questions regarding the applicability of
this action to a particular entity, consult
the person listed under FOR FURTHER
INFORMATION CONTACT.
B. How Can I Access Electronic Copies
of this Document?
In addition to accessing an electronic
copy of this Federal Register document
through the electronic docket at https://
www.regulations.gov, you may access
this ‘‘Federal Register’’ document
electronically through the EPA Internet
under the ‘‘Federal Register’’ listings at
https://www.epa.gov/fedrgstr. You may
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also access a frequently updated
electronic version of 40 CFR part 180
through the Government Printing
Office’s pilot e-CFR site at https://
www.gpoaccess.gov/ecfr.
C. Can I File an Objection or Hearing
Request?
Under section 408(g) of the FFDCA, as
amended by the FQPA, any person may
file an objection to any aspect of this
regulation and may also request a
hearing on those objections. The EPA
procedural regulations which govern the
submission of objections and requests
for hearings appear in 40 CFR part 178.
You must file your objection or request
a hearing on this regulation in
accordance with the instructions
provided in 40 CFR part 178. To ensure
proper receipt by EPA, you must
identify docket ID number EPA–HQ–
OPP–2006–0329 in the subject line on
the first page of your submission. All
requests must be in writing, and must be
mailed or delivered to the Hearing Clerk
on or before October 15, 2007.
In addition to filing an objection or
hearing request with the Hearing Clerk
as described in 40 CFR part 178, please
submit a copy of the filing that does not
contain any CBI for inclusion in the
public docket that is described in
ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2
may be disclosed publicly by EPA
without prior notice. Submit your
copies, identified by docket ID number
EPA–HQ–OPP–2006–0329, by one of
the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the on-line
instructions for submitting comments.
• Mail: Office of Pesticide Programs
(OPP) Regulatory Public Docket (7502P),
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001.
• Delivery: OPP Regulatory Public
Docket (7502P), Environmental
Protection Agency, Rm. S–4400, One
Potomac Yard (South Bldg.), 2777 S.
Crystal Dr., Arlington, VA. Deliveries
are only accepted during the Docket’s
normal hours of operation (8:30 a.m. to
4 p.m., Monday through Friday,
excluding legal holidays). Special
arrangements should be made for
deliveries of boxed information. The
Docket Facility telephone number is
(703) 305–5805.
II. Background and Statutory Findings
In the Federal Register of June 14,
2006 (71 FR 34338) (FRL–8059–8), EPA
issued a notice pursuant to section
408(d)(3) of the FFDCA, 21 U.S.C.
346a(d)(3), announcing the filing of a
pesticide tolerance petition (PP 6E7050)
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by Bio-Oz Biotechnologies Ltd., Kibbutz
Yad Mordechai, DN Hof Ashkelon
79145, Israel. The petition requested
that 40 CFR part 180 be amended by
establishing an exemption from the
requirement of a tolerance for residues
of ZYMV-WK strain. This notice
included a summary of the petition
prepared by the petitioner Bio-Oz
Biotechnologies Ltd. There were no
comments received in response to the
notice of filing.
Section 408(c)(2)(A)(i) of the FFDCA
allows EPA to establish an exemption
from the requirement for a tolerance (the
legal limit for a pesticide chemical
residue in or on a food) only if EPA
determines that the exemption is ‘‘safe.’’
Section 408(c)(2)(A)(ii) of the FFDCA
defines ‘‘safe’’ to mean that ‘‘there is a
reasonable certainty that no harm will
result from aggregate exposure to the
pesticide chemical residue, including
all anticipated dietary exposures and all
other exposures for which there is
reliable information.’’ This includes
exposure through drinking water and in
residential settings, but does not include
occupational exposure. Pursuant to
section 408(c)(2)(B), in establishing or
maintaining in effect an exemption from
the requirement of a tolerance, EPA
must take into account the factors set
forth in section 408(b)(2)(C), which
require EPA to give special
consideration to exposure of infants and
children to the pesticide chemical
residue in establishing a tolerance and
to ‘‘ensure that there is a reasonable
certainty that no harm will result to
infants and children from aggregate
exposure to the pesticide chemical
residue. . . . ’’ Additionally, section
408(b)(2)(D) of the FFDCA requires that
the Agency consider ‘‘available
information concerning the cumulative
effects of a particular pesticide’s
residues ’’ and ‘‘other substances that
have a common mechanism of toxicity.’’
EPA performs a number of analyses to
determine the risks from aggregate
exposure to pesticide residues. First,
EPA determines the toxicity of
pesticides. Second, EPA examines
exposure to the pesticide through food,
drinking water, and through other
exposures that occur as a result of
pesticide use in residential settings.
III. Toxicological Profile
Consistent with section 408(b)(2)(D)
of the FFDCA, EPA has reviewed the
available scientific data and other
relevant information in support of this
action and considered its validity,
completeness, and reliability and the
relationship of this information to
human risk. EPA has also considered
available information concerning the
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variability of the sensitivities of major
identifiable subgroups of consumers,
including infants and children.
ZYMV-WK is a potyvirus, a type of
plant virus, and potyviruses have no
known toxicity or pathogenicity to any
organism other than plants. They are
unable to infect animals because they
lack binding site receptors on cell
surfaces common to animal viruses.
Potyviruses enter plant cells only
through open wounds (i.e., wounds
produced by feeding insects, such as
aphids, or by mechanical methods) or
through cell-to-cell transfer (FrankelConrat, et.al., 1988). Nearly all living
things are routinely exposed to plant
viruses, including potyviruses, through
plants and plant products (e.g., foods).
Naturally occurring strains of ZYMV are
known to infect about 18 plant species,
within seven different families (Plant
Viruses Online). The intended microbial
pesticide, ZYMV-WK is reported as a
naturally-occurring, weakened strain of
ZYMV, and was first recovered from
infected zucchini plants in France
(LeCoq et al., 1991). Consequently
humans are likely already exposed to
ZYMV-WK through the diet.
Throughout the available literature,
there are no reports of adverse effects in
animals resulting from ingestion of, or
exposure to these viruses. Although
severe viral strains of the ZYMV may
replicate in aphids ZYMV-WK, does not
replicate in aphids and is transmitted
poorly by these insects (LeCoq et al.,
1991).
ZYMV-WK strain is a natural plant
virus isolate and replicates only in
susceptible plant hosts, such as the
cucurbitaceae, e.g., zucchini and
cantaloupe. This weak strain of ZYMV
cucurbitaceae does not cause overt plant
disease and appears to stimulate plant
defenses against severe strains of
ZYMV. In addition, there are no reports
of adverse effects in humans that handle
and administer the viruses, or of the
laboratory animals exposed to this virus
developing any nasal, eye, skin, or
pulmonary allergic reactions, or any
other adverse reactions.
In support of this tolerance
exemption, mammalian toxicology
requirements were satisfied by publicly
available information submitted by BioOz Biotechnologies, Ltd., summarized
in the preceding paragraph. Specifically,
the information provided supports the
lack of toxicity of potyviruses to
mammals and humans, plus the fact that
only certain plants (and no animals) are
susceptible to ZYMV-WK.
1. Acute oral toxicity/pathogenicity
(OPPTS 885.3050). To satisfy this
requirement, the registrant submitted
supporting public literature in lieu of a
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laboratory animal study, which
documents that plant viruses, including
ZYMV-WK, are found in food ingested
by humans and animals. According to
the submitted published literature, no
known adverse effects or deaths have
occurred in any species as a result of
dietary exposure. Furthermore, there are
‘‘no reports of ill-health, sensitization,
pathogenicity or allergenicity’’ from
these plant viruses, to humans or other
vertebrates even after use of ZYMV-WK
as a pesticide in the EU and Israel. Plant
viruses are not known to infect
mammalian cells, nor replicate in
mammals.
2. Acute dermal toxicity/
pathogenicity (OPPTS 885.3100) and
primary dermal irritation (OPPTS
harmonized guideline 152–34). The
registrant submitted supporting public
literature in lieu of a laboratory animal
study to fulfill this requirement,
documenting that plant viruses,
including ZYMV-WK are ubiquitous in
susceptible host plants, and are not
known to cause acute dermal toxicity or
pathogenicity to mammals.
Furthermore, there are ‘‘no reports of illhealth, sensitization or allergenicity’’
from these plant viruses, to humans or
other vertebrates even after use of
ZYMV-WK as a pesticide in the EU and
Israel.
3. Primary eye irritation (OPPTS
harmonized guideline 152–35). The
registrant submitted supporting public
literature rather than a study to fulfill
this requirement, showing that plant
viruses are ubiquitous in plants, and
they are not known to cause acute eye
irritation or pathogenicity to mammals.
Furthermore, routine exposures to
ZYMV-WK have not led to any known
adverse effects; there are ‘‘no reports of
ill-health, sensitization or allergenicity’’
from these plant viruses, to humans or
other vertebrates even after use of
ZYMV-WK as a pesticide in the EU and
Israel.
4. Acute pulmonary toxicity/
pathogenicity (OPPTS 885.3150). To
fulfill this requirement, the registrant
submitted supporting public literature
in lieu of a laboratory animal study,
showing that plant viruses, including
ZYMV-WK, are ubiquitous in
susceptible host plants, and they are not
known to cause acute pulmonary
toxicity or pathogenicity to mammals.
There are ‘‘no reports of ill-health,
sensitization or allergenicity’’ from
these plant viruses, to humans or other
vertebrates even after use of ZYMV-WK
as a pesticide in the EU and Israel.
5. Acute injection toxicity/
pathogenicity (OPPTS 885.3200). To
fulfill this requirement, the registrant
submitted supporting public literature
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45651
in lieu of a laboratory animal study,
documenting the following:
i. ZYMV-WK, like all potyviruses may
evoke immune responses and produce
antibodies if properly injected into
laboratory animals such as rabbits, mice,
chickens, and guinea pigs without
causing adverse effects to the animals,
and;
ii. There are no reports of humans that
handle and administer ZYMV-WK, or
laboratory animals developing adverse
reactions to the virus. There are ‘‘no
reports of ill-health, sensitization or
allergenicity’’ from these plant viruses,
to humans or other vertebrates even
after use of ZYMV-WK as a pesticide in
the EU and Israel.
6. Hypersensitivity incidents (OPPTS
885.3400). Workers handling ZYMV-WK
on a daily basis since 1986 have not had
a single incidence of hypersensitivity.
There are no reports of hypersensitivity
in humans or other animals due to
potyviruses, in the literature.
7. Cell culture (OPPTS 885.3500). To
satisfy this requirement, the registrant
submitted the following information,
supported by public literature.
Potyviruses such as ZYMV-WK are
unable to infect animal cells since the
cell surface plays an important role in
viral infection of animal cells. During
infection, animal viruses interact
specifically with receptors on the
animal cell surface. Potyviruses lack
recognition for animal infectivity
receptors and only enter plant cells
through open wounds or via cell-to-cell
transfer through intercellular
connections.
8. Immune response (OPPTS
harmonized guideline 152–38). To fulfill
this requirement, the registrant
submitted supporting public literature
in lieu of a laboratory animal study,
documenting the following: No health
effects were noticed when infectious
plant viruses, including ZYMV, were
repeatedly injected into rabbits over
several weeks for polyclonal antibody
production.
In summary, ZYMV-WK is ubiquitous
in susceptible host plants and is not
known to cause toxicity or
pathogenicity to mammals. Based on the
published literature, in accordance with
Tier I toxicology data requirements set
forth in 40 CFR 158.740(c), the Tier II
and Tier III toxicology data
requirements were not triggered in
connection with this action.
IV. Aggregate Exposures
In examining aggregate exposure,
section 408 of the FFDCA directs EPA
to consider available information
concerning exposures from the pesticide
residue in food and all other non-
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occupational exposures, including
drinking water from ground water or
surface water and exposure through
pesticide use in gardens, lawns, or
buildings (residential and other indoor
uses).
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A. Dietary Exposure
1. Food. Virus-infected food plants
have always been a part of the human
and domestic animal food supply
(Dewan and Pearson, 1995; McKinney,
1929; Provvidenti and Gonsalves, 1984;
Palukaitis, 1991; Jones et al., 1934;
Beemster and de Bokx, 1987). Most
plants may be infected by at least one
virus, and components of plant viruses
are often found in the produce of crop
plants. Even plants that show no disease
symptoms are often found to be infected
with viruses (Jones et al., 1934; Fulton,
1986). In addition, a common
agricultural practice used since the
1920s for protection against viral
disease involves intentionally
inoculating healthy plants with a mild
form of a virus in order to prevent
infection by a more virulent form
(Fulton, 1986). A great deal of
information supports the ubiquitous
appearance of plant viruses in foods,
and to date there have been no reports
of adverse human or animal health
effects associated with consumption of
plant viruses in food. Furthermore, the
proposed section 3 registration and
ensuing commercial use is not expected
to result in increased exposures of
ZYMV-WK to the general population:
The intended use of ZYMV-WK is
within semi-contained environments
and consequently exposures to humans
are limited. Even if there were increased
exposures to residues of ZYMV-WK as
a result of other pesticidal uses, there is
a reasonable certainty that no harm will
result to human health because of the
lack of toxicity or pathogenicity of
ZYMV-WK to humans.
2. Drinking water exposure. ZYMVWK is not intended for use in drinking
water. However, in the event that
ZYMV-WK would reach water
consumed by humans, for the reasons
enumerated above, the Agency
concludes that there is reasonable
certainty that no harm will result to
humans from such exposures through
water because of the lack of toxicity or
pathogenicity of ZYMV-WK to humans.
B. Other Non-Occupational Exposure
EPA concludes that dermal or
inhalation exposure to the general
population as a result of this section 3
registration is not likely to occur, based
on the proposed uses in semi-contained
environments and limited exposure to
young cucurbit crop plants. Moreover,
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the general population, including
infants and children, are exposed to
plant viruses daily in food with no
known adverse effects ever being
reported. Therefore, the Agency
concludes that in the unlikely event that
there is non-occupational, non-dietary
exposure to ZYMV-WK, such exposure
would pose no risks to the general
population, including infants and
children.
V. Cumulative Effects
Section 408(b)(2)(D)(v) of FFDCA
requires that EPA consider available
information on the cumulative effects of
a particular pesticide’s residues and
other substances that have a common
mechanism of toxicity when
establishing, modifying, or revoking a
tolerance. These considerations include
the possible cumulative effects on
infants and children of such residues
and other substances with a common
mode of toxicity. Because ZYMV-WK
does not have any toxic or pathogenic
effects, it cannot share a common
mechanism of toxicity with other
substances. Therefore, section
408(b)(2)(D)(v) does not apply.
VI. Determination of Safety for U.S.
Population, Infants and Children
1. U.S. population. For all of the
reasons discussed above, there is
reasonable certainty that no harm will
result to the U.S. population, including
infants and children, from aggregate
exposure to residues of ZYMV-WK. This
includes all anticipated dietary
exposures and all other exposures for
which there is reliable information.
2. Infants and children. FFDCA
section 408(b)(2)(C) provides that EPA
shall apply an additional tenfold margin
of exposure (MOE) for infants and
children in the case of threshold effects
to account for prenatal and postnatal
toxicity and the completeness of the
data base on toxicity and exposure,
unless EPA determines that a different
MOE will be safe for infants and
children. MOEs, which are often
referred to as uncertainty (safety)
factors, are incorporated into EPA risk
assessments either directly, or through
the use of a MOE analysis or by using
uncertainty factors in calculating a dose
level that poses no appreciable risk. As
previously indicated in the toxicological
profile, humans, including infants and
children, have been exposed to plant
viruses through food, where they are
commonly found, with no known or
reported adverse effects. As discussed
above, the Agency has concluded that
ZYMV-WK is non-toxic to mammals,
including infants and children. Because
there are no threshold levels of concern
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to infants, children, and adults when
ZYMV-WK is used as labeled, the
Agency concludes that the additional
MOE is not necessary to protect infants
and children.
VII. Other Considerations
A. Endocrine Disruptors
At this time, the Agency is not
requiring information on the endocrine
effects of this active ingredient, ZYMVWK. The Agency has considered, among
other relevant factors, available
information concerning whether the
weak plant virus may have an effect in
humans similar to an effect produced by
a naturally occurring estrogen or other
endocrine effects. Plant viruses cannot
infect mammals, and there is no known
metabolite that acts as an ‘‘endocrine
disruptor’’ produced by this virus.
Therefore, there is no impact via
endocrine-related effects on the
Agency’s safety findings in this final
rule.
B. Analytical Method(s)
Through this action, the Agency is
proposing to establish an exemption
from the requirement of a tolerance for
residues of ZYMV-WK on cucurbit
crops for the purposes of a FIFRA
section 3 registration. The Agency
reached this decision based on the
reasons discussed above, including lack
of toxicity to mammals, and therefore,
concludes that an analytical method for
detecting ZYMV-WK is not required for
enforcement purposes.
C. Codex Maximum Residue Level
No Codex maximum residue levels
exist for the virus ZYMV-WK.
VIII. REFERENCES
• Beemster ABR, de Bokx JA. Survey
of properties and symptoms. In: De
Bokx JA, van der Want JPH. Viruses of
Potatoes and Seed Potato Production.
Wageningen: Pudoc, 1987:84–93.
• Braverman, M. Acute Oral, Dermal,
Pulmonary and Injection Toxicity/
Pathogenicity Cell Culture, Acute
Toxicology Tier 2, Subchronic Toxicity/
Pathogenicity, Reproductive and
Fertility Effects. 2005. OPP/EPA MRID
No. 467854–19
• Dewan, C, Pearson MN. Natural
field infection of garlic by garlic yellow
streak virus in the Pukekohe area of
New Zealand and associated problems
with the introduction of new garlic
cultivars. New Zealand Journal of Crop
and Horticultural Science 1995; 23:97–
102.
• Fraenkel-Conrat, H., Kimball, P.C.,
and Levy, J.A. 1988. Virology, 2nd
edition. Prentice Hall, Englewood Cliffs,
E:\FR\FM\15AUR1.SGM
15AUR1
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Rules and Regulations
ebenthall on PRODPC61 with RULES
NJ (virus cellular receptors and cell
membrane changes, p. 299–300).
• Fulton R. Practices and precautions
in the use of cross protection for plant
virus disease control. Annual Review of
Phytopathology 1986; 24:67–81.
• Jones L, Anderson E, Burnett G. The
latent virus of potatoes. Journal of
Phytopathology 1934; 7:93–115.
• McKinney HH. Mosaic diseases in
the Canary Islands, West Africa, and
Gibraltar. Journal of Agricultural
Research 1929; 39:557–78.
• Palukaitis P. Virus-mediated genetic
transfer in plants. In: Levin M, Strauss
H. Risk Assessment in Genetic
Engineering. New York: McGraw-Hill,
1991:140–62.
• Provvidenti R, Gonsalves D.
Occurrence of ZYMV in cucurbits from
Connecticut, New York, Florida, and
California. Plant Disease 1984; 68:443–
6. Palukaitis P. Virus-mediated genetic
transfer in plants. In: Levin M, Strauss
H. Risk Assessment in Genetic
Engineering. New York: McGraw-Hill,
1991:140–62.
Plant viruses Online, 2007. https://
image.fs.uidaho.edu/vide/descr909.htm
IX. Statutory and Executive Order
Reviews
This final rule establishes an
exemption from the requirement of a
tolerance under section 408(d) of
FFDCA in response to a petition
submitted to the Agency. The Office of
Management and Budget (OMB) has
exempted these types of actions from
review under Executive Order 12866,
entitled Regulatory Planning and
Review (58 FR 51735, October 4, 1993).
Because this rule has been exempted
from review under Executive Order
12866, this rule is not subject to
Executive Order 13211, Actions
Concerning Regulations That
Significantly Affect Energy Supply,
Distribution, or Use (66 FR 28355, May
22, 2001) or Executive Order 13045,
entitled Protection of Children from
Environmental Health Risks and Safety
Risks (62 FR 19885, April 23, 1997).
This final rule does not contain any
information collections subject to OMB
approval under the Paperwork
Reduction Act (PRA), 44 U.S.C. 3501 et
seq., nor does it require any special
considerations under Executive Order
12898, entitled Federal Actions to
Address Environmental Justice in
Minority Populations and Low-Income
Populations (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established on the basis of a petition
under section 408(d) of FFDCA, such as
the exemption from the requirement of
a tolerance in this final rule, do not
VerDate Aug<31>2005
14:56 Aug 14, 2007
Jkt 211001
require the issuance of a proposed rule,
the requirements of the Regulatory
Flexibility Act (RFA) (5 U.S.C. 601 et
seq.) do not apply.
This final rule directly regulates
growers, food processors, food handlers
and food retailers, not States or tribes,
nor does this action alter the
relationships or distribution of power
and responsibilities established by
Congress in the preemption provisions
of section 408(n)(4) of FFDCA. As such,
the Agency has determined that this
action will not have a substantial direct
effect on States or tribal governments,
on the relationship between the national
government and the States or tribal
governments, or on the distribution of
power and responsibilities among the
various levels of government or between
the Federal Government and Indian
tribes. Thus, the Agency has determined
that Executive Order 13132, entitled
Federalism (64 FR 43255, August 10,
1999) and Executive Order 13175,
entitled Consultation and Coordination
with Indian Tribal Governments (65 FR
67249, November 6, 2000) do not apply
to this rule. In addition, This rule does
not impose any enforceable duty or
contain any unfunded mandate as
described under Title II of the Unfunded
Mandates Reform Act of 1995 (UMRA)
(Public Law 104–4).
This action does not involve any
technical standards that would require
Agency consideration of voluntary
consensus standards pursuant to section
12(d) of the National Technology
Transfer and Advancement Act of 1995
(NTTAA), Public Law 104–113, section
12(d) (15 U.S.C. 272 note).
X. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., generally provides
that before a rule may take effect, the
agency promulgating the rule must
submit a rule report to each House of
the Congress and to the Comptroller
General of the United States. EPA will
submit a report containing this rule and
other required information to the U.S.
Senate, the U.S. House of
Representatives, and the Comptroller
General of the United States prior to
publication of this final rule in the
Federal Register. This final rule is not
a ‘‘major rule’’ as defined by 5 U.S.C.
804(2).
List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
PO 00000
Frm 00043
Fmt 4700
Sfmt 4700
45653
Dated: August 1, 2007.
Debra Edwards,
Director, Office of Pesticide Programs.
Therefore, 40 CFR chapter I is
amended as follows:
I
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
I
Authority: 21 U.S.C. 321(q), 346a and 371.
2. Section 180.1279 is added to
subpart D to read as follows:
I
§ 180.1279 Zucchini yellow mosaic virus weak strain; exemption from the
requirement of a tolerance.
An exemption from the requirement
of a tolerance for residues of the ZYMVWK strain in or on all raw cucurbits
when applied/used in accordance with
label directions.
[FR Doc. E7–16057 Filed 8–14–07; 8:45 am]
BILLING CODE 6560–50–S
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2007–0220; FRL–8122–3]
Cis-isomer of 1-(3-chloroallyl)-3,5,7triaza-1-azoniaadamantane chloride
(CAS Reg. No. 51229–78–8); Exemption
from the Requirement of a Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes an
exemption from the requirement of a
tolerance for residues of cis-isomer of 1(3-chloroallyl)-3,5,7-triaza-1azoniaadamantane chloride (CAS Reg.
No. 51229–78–8) under 40 CFR 180.920
(growing crops) when used as an inert
ingredient as a preservative at 0.14% by
weight (wt) or less of pesticide
formulations. Dow Chemical Company
submitted a petition to EPA under the
Federal Food, Drug, and Cosmetic Act
(FFDCA), as amended by the Food
Quality Protection Act of 1996 (FQPA),
requesting an exemption from the
requirement of a tolerance.
DATES: This regulation is effective
August 15, 2007. Objections and
requests for hearings must be received
on or before October 15, 2007, and must
be filed in accordance with the
instructions provided in 40 CFR part
178 (see also Unit I.C. of the
SUPPLEMENTARY INFORMATION).
ADDRESSES: EPA has established a
docket for this action under docket
identification (ID) number EPA–HQ–
OPP–2007–0220. To access the
E:\FR\FM\15AUR1.SGM
15AUR1
Agencies
[Federal Register Volume 72, Number 157 (Wednesday, August 15, 2007)]
[Rules and Regulations]
[Pages 45649-45653]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-16057]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2006-0329; FRL-8137-9]
Zucchini Yellow Mosaic Virus-Weak Strain; Exemption from the
Requirement of a Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes an exemption from the requirement
of a tolerance for residues of the zucchini yellow mosaic virus-weak
strain (ZYMV-WK) on cucurbits, including, cucumbers, cantaloupes,
watermelons, muskmelons, winter and summer squash, pumpkins, zucchini
and other cucurbits when applied/used as a viruscide to protect
curcurbit crop plants against severe strains of zucchini yellow mosaic
virus. Bio-Oz Biotechnologies Limited submitted a petition to EPA under
the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the
Food Quality Protection Act of 1996 (FQPA), requesting an exemption
from the requirement of a tolerance. This regulation eliminates the
need to establish a maximum permissible level for residues of ZYMV-WK
strain.
DATES: This regulation is effective August 15, 2007. Objections and
requests for hearings must be received on or before October 15, 2007,
and must be filed in accordance with the instructions provided in 40
CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
ADDRESSES: EPA has established a docket for this action under docket
identification (ID) number EPA-HQ-OPP-2006-0329. To access the
electronic docket, go to https://www.regulations.gov, select ``Advanced
Search,'' then ``Docket Search.'' Insert the docket ID number where
indicated and select the ``Submit'' button. Follow the instructions on
the regulations.gov web site to view the docket index or access
available documents. All documents in the docket are listed in the
docket index available in regulations.gov. Although listed in the
index, some information is not publicly available, e.g., Confidential
Business Information (CBI) or other information
[[Page 45650]]
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, is not placed on the Internet and will be
publicly available only in hard copy form. Publicly available docket
materials are available in the electronic docket at https://
www.regulations.gov, or,if only available in hard copy, at the OPP
Regulatory Public Docket in Rm. S-4400, One Potomac Yard (South Bldg.),
2777 S. Crystal Dr., Arlington, VA. The Docket Facility is open from
8:30 a.m. to 4 p.m., Monday through Friday, excluding legal holidays.
The Docket Facility telephone number is (703) 305-5805.
FOR FURTHER INFORMATION CONTACT: Gail Tomimatsu, Biopesticides and
Pollution Prevention Division (7511P), Environmental Protection Agency,
1200 Pennsylvania Ave., NW., Washington, DC 20460-0001; telephone
number: (703) 308-8543; e-mail address: tomimatsu.gail@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does This Action Apply to Me?
You may be potentially affected by this action if you are an
agricultural producer, food manufacturer, or pesticide manufacturer.
Potentially affected entities may include, but are not limited to:
Crop production (NAICS code 111).
Animal production (NAICS code 112).
Food manufacturing (NAICS code 311).
Pesticide manufacturing (NAICS code 32532).
This listing is not intended to be exhaustive, but rather provides
a guide for readers regarding entities likely to be affected by this
action. Other types of entities not listed in this unit could also be
affected. The North American Industrial Classification System (NAICS)
codes have been provided to assist you and others in determining
whether this action might apply to certain entities. If you have any
questions regarding the applicability of this action to a particular
entity, consult the person listed under FOR FURTHER INFORMATION
CONTACT.
B. How Can I Access Electronic Copies of this Document?
In addition to accessing an electronic copy of this Federal
Register document through the electronic docket at https://
www.regulations.gov, you may access this ``Federal Register'' document
electronically through the EPA Internet under the ``Federal Register''
listings at https://www.epa.gov/fedrgstr. You may also access a
frequently updated electronic version of 40 CFR part 180 through the
Government Printing Office's pilot e-CFR site at https://
www.gpoaccess.gov/ecfr.
C. Can I File an Objection or Hearing Request?
Under section 408(g) of the FFDCA, as amended by the FQPA, any
person may file an objection to any aspect of this regulation and may
also request a hearing on those objections. The EPA procedural
regulations which govern the submission of objections and requests for
hearings appear in 40 CFR part 178. You must file your objection or
request a hearing on this regulation in accordance with the
instructions provided in 40 CFR part 178. To ensure proper receipt by
EPA, you must identify docket ID number EPA-HQ-OPP-2006-0329 in the
subject line on the first page of your submission. All requests must be
in writing, and must be mailed or delivered to the Hearing Clerk on or
before October 15, 2007.
In addition to filing an objection or hearing request with the
Hearing Clerk as described in 40 CFR part 178, please submit a copy of
the filing that does not contain any CBI for inclusion in the public
docket that is described in ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA
without prior notice. Submit your copies, identified by docket ID
number EPA-HQ-OPP-2006-0329, by one of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the on-line instructions for submitting comments.
Mail: Office of Pesticide Programs (OPP) Regulatory Public
Docket (7502P), Environmental Protection Agency, 1200 Pennsylvania
Ave., NW., Washington, DC 20460-0001.
Delivery: OPP Regulatory Public Docket (7502P),
Environmental Protection Agency, Rm. S-4400, One Potomac Yard (South
Bldg.), 2777 S. Crystal Dr., Arlington, VA. Deliveries are only
accepted during the Docket's normal hours of operation (8:30 a.m. to 4
p.m., Monday through Friday, excluding legal holidays). Special
arrangements should be made for deliveries of boxed information. The
Docket Facility telephone number is (703) 305-5805.
II. Background and Statutory Findings
In the Federal Register of June 14, 2006 (71 FR 34338) (FRL-8059-
8), EPA issued a notice pursuant to section 408(d)(3) of the FFDCA, 21
U.S.C. 346a(d)(3), announcing the filing of a pesticide tolerance
petition (PP 6E7050) by Bio-Oz Biotechnologies Ltd., Kibbutz Yad
Mordechai, DN Hof Ashkelon 79145, Israel. The petition requested that
40 CFR part 180 be amended by establishing an exemption from the
requirement of a tolerance for residues of ZYMV-WK strain. This notice
included a summary of the petition prepared by the petitioner Bio-Oz
Biotechnologies Ltd. There were no comments received in response to the
notice of filing.
Section 408(c)(2)(A)(i) of the FFDCA allows EPA to establish an
exemption from the requirement for a tolerance (the legal limit for a
pesticide chemical residue in or on a food) only if EPA determines that
the exemption is ``safe.'' Section 408(c)(2)(A)(ii) of the FFDCA
defines ``safe'' to mean that ``there is a reasonable certainty that no
harm will result from aggregate exposure to the pesticide chemical
residue, including all anticipated dietary exposures and all other
exposures for which there is reliable information.'' This includes
exposure through drinking water and in residential settings, but does
not include occupational exposure. Pursuant to section 408(c)(2)(B), in
establishing or maintaining in effect an exemption from the requirement
of a tolerance, EPA must take into account the factors set forth in
section 408(b)(2)(C), which require EPA to give special consideration
to exposure of infants and children to the pesticide chemical residue
in establishing a tolerance and to ``ensure that there is a reasonable
certainty that no harm will result to infants and children from
aggregate exposure to the pesticide chemical residue. . . . ''
Additionally, section 408(b)(2)(D) of the FFDCA requires that the
Agency consider ``available information concerning the cumulative
effects of a particular pesticide's residues '' and ``other substances
that have a common mechanism of toxicity.''
EPA performs a number of analyses to determine the risks from
aggregate exposure to pesticide residues. First, EPA determines the
toxicity of pesticides. Second, EPA examines exposure to the pesticide
through food, drinking water, and through other exposures that occur as
a result of pesticide use in residential settings.
III. Toxicological Profile
Consistent with section 408(b)(2)(D) of the FFDCA, EPA has reviewed
the available scientific data and other relevant information in support
of this action and considered its validity, completeness, and
reliability and the relationship of this information to human risk. EPA
has also considered available information concerning the
[[Page 45651]]
variability of the sensitivities of major identifiable subgroups of
consumers, including infants and children.
ZYMV-WK is a potyvirus, a type of plant virus, and potyviruses have
no known toxicity or pathogenicity to any organism other than plants.
They are unable to infect animals because they lack binding site
receptors on cell surfaces common to animal viruses. Potyviruses enter
plant cells only through open wounds (i.e., wounds produced by feeding
insects, such as aphids, or by mechanical methods) or through cell-to-
cell transfer (Frankel-Conrat, et.al., 1988). Nearly all living things
are routinely exposed to plant viruses, including potyviruses, through
plants and plant products (e.g., foods). Naturally occurring strains of
ZYMV are known to infect about 18 plant species, within seven different
families (Plant Viruses Online). The intended microbial pesticide,
ZYMV-WK is reported as a naturally-occurring, weakened strain of ZYMV,
and was first recovered from infected zucchini plants in France (LeCoq
et al., 1991). Consequently humans are likely already exposed to ZYMV-
WK through the diet. Throughout the available literature, there are no
reports of adverse effects in animals resulting from ingestion of, or
exposure to these viruses. Although severe viral strains of the ZYMV
may replicate in aphids ZYMV-WK, does not replicate in aphids and is
transmitted poorly by these insects (LeCoq et al., 1991).
ZYMV-WK strain is a natural plant virus isolate and replicates only
in susceptible plant hosts, such as the cucurbitaceae, e.g., zucchini
and cantaloupe. This weak strain of ZYMV cucurbitaceae does not cause
overt plant disease and appears to stimulate plant defenses against
severe strains of ZYMV. In addition, there are no reports of adverse
effects in humans that handle and administer the viruses, or of the
laboratory animals exposed to this virus developing any nasal, eye,
skin, or pulmonary allergic reactions, or any other adverse reactions.
In support of this tolerance exemption, mammalian toxicology
requirements were satisfied by publicly available information submitted
by Bio-Oz Biotechnologies, Ltd., summarized in the preceding paragraph.
Specifically, the information provided supports the lack of toxicity of
potyviruses to mammals and humans, plus the fact that only certain
plants (and no animals) are susceptible to ZYMV-WK.
1. Acute oral toxicity/pathogenicity (OPPTS 885.3050). To satisfy
this requirement, the registrant submitted supporting public literature
in lieu of a laboratory animal study, which documents that plant
viruses, including ZYMV-WK, are found in food ingested by humans and
animals. According to the submitted published literature, no known
adverse effects or deaths have occurred in any species as a result of
dietary exposure. Furthermore, there are ``no reports of ill-health,
sensitization, pathogenicity or allergenicity'' from these plant
viruses, to humans or other vertebrates even after use of ZYMV-WK as a
pesticide in the EU and Israel. Plant viruses are not known to infect
mammalian cells, nor replicate in mammals.
2. Acute dermal toxicity/pathogenicity (OPPTS 885.3100) and primary
dermal irritation (OPPTS harmonized guideline 152-34). The registrant
submitted supporting public literature in lieu of a laboratory animal
study to fulfill this requirement, documenting that plant viruses,
including ZYMV-WK are ubiquitous in susceptible host plants, and are
not known to cause acute dermal toxicity or pathogenicity to mammals.
Furthermore, there are ``no reports of ill-health, sensitization or
allergenicity'' from these plant viruses, to humans or other
vertebrates even after use of ZYMV-WK as a pesticide in the EU and
Israel.
3. Primary eye irritation (OPPTS harmonized guideline 152-35). The
registrant submitted supporting public literature rather than a study
to fulfill this requirement, showing that plant viruses are ubiquitous
in plants, and they are not known to cause acute eye irritation or
pathogenicity to mammals. Furthermore, routine exposures to ZYMV-WK
have not led to any known adverse effects; there are ``no reports of
ill-health, sensitization or allergenicity'' from these plant viruses,
to humans or other vertebrates even after use of ZYMV-WK as a pesticide
in the EU and Israel.
4. Acute pulmonary toxicity/pathogenicity (OPPTS 885.3150). To
fulfill this requirement, the registrant submitted supporting public
literature in lieu of a laboratory animal study, showing that plant
viruses, including ZYMV-WK, are ubiquitous in susceptible host plants,
and they are not known to cause acute pulmonary toxicity or
pathogenicity to mammals. There are ``no reports of ill-health,
sensitization or allergenicity'' from these plant viruses, to humans or
other vertebrates even after use of ZYMV-WK as a pesticide in the EU
and Israel.
5. Acute injection toxicity/pathogenicity (OPPTS 885.3200). To
fulfill this requirement, the registrant submitted supporting public
literature in lieu of a laboratory animal study, documenting the
following:
i. ZYMV-WK, like all potyviruses may evoke immune responses and
produce antibodies if properly injected into laboratory animals such as
rabbits, mice, chickens, and guinea pigs without causing adverse
effects to the animals, and;
ii. There are no reports of humans that handle and administer ZYMV-
WK, or laboratory animals developing adverse reactions to the virus.
There are ``no reports of ill-health, sensitization or allergenicity''
from these plant viruses, to humans or other vertebrates even after use
of ZYMV-WK as a pesticide in the EU and Israel.
6. Hypersensitivity incidents (OPPTS 885.3400). Workers handling
ZYMV-WK on a daily basis since 1986 have not had a single incidence of
hypersensitivity. There are no reports of hypersensitivity in humans or
other animals due to potyviruses, in the literature.
7. Cell culture (OPPTS 885.3500). To satisfy this requirement, the
registrant submitted the following information, supported by public
literature. Potyviruses such as ZYMV-WK are unable to infect animal
cells since the cell surface plays an important role in viral infection
of animal cells. During infection, animal viruses interact specifically
with receptors on the animal cell surface. Potyviruses lack recognition
for animal infectivity receptors and only enter plant cells through
open wounds or via cell-to-cell transfer through intercellular
connections.
8. Immune response (OPPTS harmonized guideline 152-38). To fulfill
this requirement, the registrant submitted supporting public literature
in lieu of a laboratory animal study, documenting the following: No
health effects were noticed when infectious plant viruses, including
ZYMV, were repeatedly injected into rabbits over several weeks for
polyclonal antibody production.
In summary, ZYMV-WK is ubiquitous in susceptible host plants and
is not known to cause toxicity or pathogenicity to mammals. Based on
the published literature, in accordance with Tier I toxicology data
requirements set forth in 40 CFR 158.740(c), the Tier II and Tier III
toxicology data requirements were not triggered in connection with this
action.
IV. Aggregate Exposures
In examining aggregate exposure, section 408 of the FFDCA directs
EPA to consider available information concerning exposures from the
pesticide residue in food and all other non-
[[Page 45652]]
occupational exposures, including drinking water from ground water or
surface water and exposure through pesticide use in gardens, lawns, or
buildings (residential and other indoor uses).
A. Dietary Exposure
1. Food. Virus-infected food plants have always been a part of the
human and domestic animal food supply (Dewan and Pearson, 1995;
McKinney, 1929; Provvidenti and Gonsalves, 1984; Palukaitis, 1991;
Jones et al., 1934; Beemster and de Bokx, 1987). Most plants may be
infected by at least one virus, and components of plant viruses are
often found in the produce of crop plants. Even plants that show no
disease symptoms are often found to be infected with viruses (Jones et
al., 1934; Fulton, 1986). In addition, a common agricultural practice
used since the 1920s for protection against viral disease involves
intentionally inoculating healthy plants with a mild form of a virus in
order to prevent infection by a more virulent form (Fulton, 1986). A
great deal of information supports the ubiquitous appearance of plant
viruses in foods, and to date there have been no reports of adverse
human or animal health effects associated with consumption of plant
viruses in food. Furthermore, the proposed section 3 registration and
ensuing commercial use is not expected to result in increased exposures
of ZYMV-WK to the general population: The intended use of ZYMV-WK is
within semi-contained environments and consequently exposures to humans
are limited. Even if there were increased exposures to residues of
ZYMV-WK as a result of other pesticidal uses, there is a reasonable
certainty that no harm will result to human health because of the lack
of toxicity or pathogenicity of ZYMV-WK to humans.
2. Drinking water exposure. ZYMV-WK is not intended for use in
drinking water. However, in the event that ZYMV-WK would reach water
consumed by humans, for the reasons enumerated above, the Agency
concludes that there is reasonable certainty that no harm will result
to humans from such exposures through water because of the lack of
toxicity or pathogenicity of ZYMV-WK to humans.
B. Other Non-Occupational Exposure
EPA concludes that dermal or inhalation exposure to the general
population as a result of this section 3 registration is not likely to
occur, based on the proposed uses in semi-contained environments and
limited exposure to young cucurbit crop plants. Moreover, the general
population, including infants and children, are exposed to plant
viruses daily in food with no known adverse effects ever being
reported. Therefore, the Agency concludes that in the unlikely event
that there is non-occupational, non-dietary exposure to ZYMV-WK, such
exposure would pose no risks to the general population, including
infants and children.
V. Cumulative Effects
Section 408(b)(2)(D)(v) of FFDCA requires that EPA consider
available information on the cumulative effects of a particular
pesticide's residues and other substances that have a common mechanism
of toxicity when establishing, modifying, or revoking a tolerance.
These considerations include the possible cumulative effects on infants
and children of such residues and other substances with a common mode
of toxicity. Because ZYMV-WK does not have any toxic or pathogenic
effects, it cannot share a common mechanism of toxicity with other
substances. Therefore, section 408(b)(2)(D)(v) does not apply.
VI. Determination of Safety for U.S. Population, Infants and Children
1. U.S. population. For all of the reasons discussed above, there
is reasonable certainty that no harm will result to the U.S.
population, including infants and children, from aggregate exposure to
residues of ZYMV-WK. This includes all anticipated dietary exposures
and all other exposures for which there is reliable information.
2. Infants and children. FFDCA section 408(b)(2)(C) provides that
EPA shall apply an additional tenfold margin of exposure (MOE) for
infants and children in the case of threshold effects to account for
prenatal and postnatal toxicity and the completeness of the data base
on toxicity and exposure, unless EPA determines that a different MOE
will be safe for infants and children. MOEs, which are often referred
to as uncertainty (safety) factors, are incorporated into EPA risk
assessments either directly, or through the use of a MOE analysis or by
using uncertainty factors in calculating a dose level that poses no
appreciable risk. As previously indicated in the toxicological profile,
humans, including infants and children, have been exposed to plant
viruses through food, where they are commonly found, with no known or
reported adverse effects. As discussed above, the Agency has concluded
that ZYMV-WK is non-toxic to mammals, including infants and children.
Because there are no threshold levels of concern to infants, children,
and adults when ZYMV-WK is used as labeled, the Agency concludes that
the additional MOE is not necessary to protect infants and children.
VII. Other Considerations
A. Endocrine Disruptors
At this time, the Agency is not requiring information on the
endocrine effects of this active ingredient, ZYMV-WK. The Agency has
considered, among other relevant factors, available information
concerning whether the weak plant virus may have an effect in humans
similar to an effect produced by a naturally occurring estrogen or
other endocrine effects. Plant viruses cannot infect mammals, and there
is no known metabolite that acts as an ``endocrine disruptor'' produced
by this virus. Therefore, there is no impact via endocrine-related
effects on the Agency's safety findings in this final rule.
B. Analytical Method(s)
Through this action, the Agency is proposing to establish an
exemption from the requirement of a tolerance for residues of ZYMV-WK
on cucurbit crops for the purposes of a FIFRA section 3 registration.
The Agency reached this decision based on the reasons discussed above,
including lack of toxicity to mammals, and therefore, concludes that an
analytical method for detecting ZYMV-WK is not required for enforcement
purposes.
C. Codex Maximum Residue Level
No Codex maximum residue levels exist for the virus ZYMV-WK.
VIII. REFERENCES
Beemster ABR, de Bokx JA. Survey of properties and
symptoms. In: De Bokx JA, van der Want JPH. Viruses of Potatoes and
Seed Potato Production. Wageningen: Pudoc, 1987:84-93.
Braverman, M. Acute Oral, Dermal, Pulmonary and Injection
Toxicity/Pathogenicity Cell Culture, Acute Toxicology Tier 2,
Subchronic Toxicity/Pathogenicity, Reproductive and Fertility Effects.
2005. OPP/EPA MRID No. 467854-19
Dewan, C, Pearson MN. Natural field infection of garlic by
garlic yellow streak virus in the Pukekohe area of New Zealand and
associated problems with the introduction of new garlic cultivars. New
Zealand Journal of Crop and Horticultural Science 1995; 23:97-102.
Fraenkel-Conrat, H., Kimball, P.C., and Levy, J.A. 1988.
Virology, 2nd edition. Prentice Hall, Englewood Cliffs,
[[Page 45653]]
NJ (virus cellular receptors and cell membrane changes, p. 299-300).
Fulton R. Practices and precautions in the use of cross
protection for plant virus disease control. Annual Review of
Phytopathology 1986; 24:67-81.
Jones L, Anderson E, Burnett G. The latent virus of
potatoes. Journal of Phytopathology 1934; 7:93-115.
McKinney HH. Mosaic diseases in the Canary Islands, West
Africa, and Gibraltar. Journal of Agricultural Research 1929; 39:557-
78.
Palukaitis P. Virus-mediated genetic transfer in plants.
In: Levin M, Strauss H. Risk Assessment in Genetic Engineering. New
York: McGraw-Hill, 1991:140-62.
Provvidenti R, Gonsalves D. Occurrence of ZYMV in
cucurbits from Connecticut, New York, Florida, and California. Plant
Disease 1984; 68:443-6. Palukaitis P. Virus-mediated genetic transfer
in plants. In: Levin M, Strauss H. Risk Assessment in Genetic
Engineering. New York: McGraw-Hill, 1991:140-62.
Plant viruses Online, 2007. https://image.fs.uidaho.edu/vide/
descr909.htm
IX. Statutory and Executive Order Reviews
This final rule establishes an exemption from the requirement of a
tolerance under section 408(d) of FFDCA in response to a petition
submitted to the Agency. The Office of Management and Budget (OMB) has
exempted these types of actions from review under Executive Order
12866, entitled Regulatory Planning and Review (58 FR 51735, October 4,
1993). Because this rule has been exempted from review under Executive
Order 12866, this rule is not subject to Executive Order 13211, Actions
Concerning Regulations That Significantly Affect Energy Supply,
Distribution, or Use (66 FR 28355, May 22, 2001) or Executive Order
13045, entitled Protection of Children from Environmental Health Risks
and Safety Risks (62 FR 19885, April 23, 1997). This final rule does
not contain any information collections subject to OMB approval under
the Paperwork Reduction Act (PRA), 44 U.S.C. 3501 et seq., nor does it
require any special considerations under Executive Order 12898,
entitled Federal Actions to Address Environmental Justice in Minority
Populations and Low-Income Populations (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established on the basis
of a petition under section 408(d) of FFDCA, such as the exemption from
the requirement of a tolerance in this final rule, do not require the
issuance of a proposed rule, the requirements of the Regulatory
Flexibility Act (RFA) (5 U.S.C. 601 et seq.) do not apply.
This final rule directly regulates growers, food processors, food
handlers and food retailers, not States or tribes, nor does this action
alter the relationships or distribution of power and responsibilities
established by Congress in the preemption provisions of section
408(n)(4) of FFDCA. As such, the Agency has determined that this action
will not have a substantial direct effect on States or tribal
governments, on the relationship between the national government and
the States or tribal governments, or on the distribution of power and
responsibilities among the various levels of government or between the
Federal Government and Indian tribes. Thus, the Agency has determined
that Executive Order 13132, entitled Federalism (64 FR 43255, August
10, 1999) and Executive Order 13175, entitled Consultation and
Coordination with Indian Tribal Governments (65 FR 67249, November 6,
2000) do not apply to this rule. In addition, This rule does not impose
any enforceable duty or contain any unfunded mandate as described under
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) (Public Law
104-4).
This action does not involve any technical standards that would
require Agency consideration of voluntary consensus standards pursuant
to section 12(d) of the National Technology Transfer and Advancement
Act of 1995 (NTTAA), Public Law 104-113, section 12(d) (15 U.S.C. 272
note).
X. Congressional Review Act
The Congressional Review Act, 5 U.S.C. 801 et seq., generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report to each House of the Congress and to
the Comptroller General of the United States. EPA will submit a report
containing this rule and other required information to the U.S. Senate,
the U.S. House of Representatives, and the Comptroller General of the
United States prior to publication of this final rule in the Federal
Register. This final rule is not a ``major rule'' as defined by 5
U.S.C. 804(2).
List of Subjects in 40 CFR Part 180
Environmental protection, Administrative practice and procedure,
Agricultural commodities, Pesticides and pests, Reporting and
recordkeeping requirements.
Dated: August 1, 2007.
Debra Edwards,
Director, Office of Pesticide Programs.
0
Therefore, 40 CFR chapter I is amended as follows:
PART 180--[AMENDED]
0
1. The authority citation for part 180 continues to read as follows:
Authority: 21 U.S.C. 321(q), 346a and 371.
0
2. Section 180.1279 is added to subpart D to read as follows:
Sec. 180.1279 Zucchini yellow mosaic virus - weak strain; exemption
from the requirement of a tolerance.
An exemption from the requirement of a tolerance for residues of
the ZYMV-WK strain in or on all raw cucurbits when applied/used in
accordance with label directions.
[FR Doc. E7-16057 Filed 8-14-07; 8:45 am]
BILLING CODE 6560-50-S