Current through Register Vol. 43, No. 52, December 26, 2024
(a) For each
individual who could enter the licensee's or registrant's restricted or
controlled area and is likely to receive, in a year, an occupational dose
requiring monitoring pursuant to K.A.R. 28-35-217a, the licensee or registrant
shall perform the following:
(1) Determine
the occupational radiation dose received during the current year; and
(2) attempt to obtain the records
of lifetime cumulative occupational radiation dose.
(b) Before permitting an individual to
participate in a planned special exposure, the licensee or registrant shall
determine all of the following:
(1) The
internal and external doses from all previous planned special exposures;
(2) all doses in excess of the
limits, including the doses received during accidents and emergencies, by the
individual; and
(3) all of the
lifetime cumulative occupational radiation dose.
(c) In complying with the requirements of
this regulation, a licensee or registrant may perform the following:
(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;
(2) accept, as the record of the
lifetime cumulative radiation dose, an up-to-date record on a form prescribed
by the department or an equivalent form, 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; and
(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, electronic mail, 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)
(1) The licensee or registrant shall record
the exposure history on a form prescribed by the department, or on a clear and
legible record that includes 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. For each period for which the
licensee obtains reports, the licensee or registrant shall use the dose shown
in the report in preparing the history. For any period in which the licensee or
registrant does not obtain a report, the licensee or registrant shall place a
notation in the history indicating the periods of time for which data are not
available.
(2) A licensee or
registrant shall not be required to reevaluate the separate external dose
equivalents and internal committed dose equivalents or intakes of radionuclides
assessed before January 1, 1994. Although occupational exposure histories
obtained and recorded before January 1, 1994 did not include effective dose
equivalent, the histories 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 the
following:
(1) That, in establishing
administrative controls under K.A.R. 28-35-212a(f) for the current year, the
allowable dose limit for the individual has been 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) Each licensee or registrant
shall retain the records of exposure history until the secretary terminates
each pertinent license or registration requiring this record. Each licensee or
registrant shall retain the information used in preparing records of exposure
history for three years after the record is made.
