Current through 2024-38, September 18, 2024
A. For each individual who is likely to
receive, in a year, an occupational dose requiring monitoring pursuant to
D.1502, the licensee or registrant shall:
(1)
Determine the occupational radiation dose received during the current year;
and
(2) Attempt to obtain the
records of cumulative occupational radiation dose.
B. Prior to permitting an individual to
participate in a planned special exposure, the licensee or registrant shall
determine:
(1) The internal and external doses
from all previous planned special exposures;
(2) All doses in excess of the limits,
including doses received during accidents and emergencies, received during the
lifetime of the individual; and
(3)
All cumulative occupational radiation dose.
C. In complying with the requirements of
D.2104.A, a licensee or registrant may:
(1)
Accept, as a record of the occupational dose that the individual received
during the current year, a written signed statement from the individual, or
from the individual's most recent employer for work involving radiation
exposure, that discloses the nature and the amount of any occupational dose
that the individual received during the current year; and
(2) Accept, as the record of cumulative
radiation dose, an up-to-date Agency form HHE 835 or equivalent, signed by the
individual and countersigned by an appropriate official of the most recent
employer for work involving radiation exposure, or the individual's current
employer, if the individual is not employed by the licensee or registrant;
(3) Obtain reports of the
individual's dose equivalent from the most recent employer for work involving
radiation exposure, or the individual's current employer, if the individual is
not employed by the licensee or registrant, by telephone, telegram, facsimile,
or letter. The licensee or registrant shall request a written verification of
the dose data if the authenticity of the transmitted report cannot be
established.
D. The
licensee or registrant shall record the exposure history, as required by
D.2104.A, on Agency form HHE 835, or other clear and legible record, of all the
information required on that form. The form or record shall show each period in
which the individual received occupational exposure to radiation or radioactive
material and shall be signed by the individual who received the exposure.
(1) For each period for which the licensee or
registrant obtains reports, the licensee or registrant shall use the dose shown
in the report in preparing HHE 835 or equivalent. For any period in which the
licensee or registrant does not obtain a report, the licensee or registrant
shall place a notation on HHE 835 or equivalent indicating the periods of time
for which data are not available.
(2) Licensees or registrants are not required
to reevaluate the separate external dose equivalents and internal committed
dose equivalents or intakes of radionuclides assessed pursuant to the
regulations in Part D in effect before January 1, 1994. Further, occupational
exposure histories obtained and recorded on HHE 835 or equivalent before
January 1, 1994, would not have included effective dose equivalent, but may be
used in the absence of specific information on the intake of radionuclides by
the individual.
E. If the
licensee or registrant is unable to obtain a complete record of an individual's
current and previously accumulated occupational dose, the licensee or
registrant shall assume:
(1) In establishing
administrative controls pursuant to D.1201.F. for the current year, that the
allowable dose limit for the individual is reduced by 12.5 mSv (1.25 rem) for
each quarter for which records were unavailable and the individual was engaged
in activities that could have resulted in occupational radiation exposure;
and
(2) That the individual is not
available for planned special exposures.
F. The licensee or registrant shall retain
the records of prior occupational dose and exposure history as specified in
D.2104 on HHE 835 or equivalent until the Agency terminates each pertinent
license or registration requiring this record. The licensee or registrant shall
retain records used in preparing HHE 835 or equivalent for three years after
the record is made.
G. Upon
termination of the license or registration, the licensee or registrant shall
permanently store records on HHE-835 or equivalent, or shall make provision
with the Agency for transfer to the Agency.
