410 IAC 5-4-3 - Disclosure of prior exposure; certification for excess exposure (form Y)
Authority: IC 16-41-35-26; IC 16-41-35-29
Affected: IC 16-41-35
Sec. 3.
(a)
(1) Each licensee or registrant shall require
any individual, prior to first entry of the individual into the licensee's or
registrant's restricted area during each employment or work assignment under
such circumstances that the individual will receive or is likely to receive in
any period of 1 calendar quarter an occupational dose in excess of 25 percent
of the applicable standards specified in
410
IAC 5-4-2(a) and
410 IAC
5-4-5(a), to disclose in a written,
signed statement, either:
(i) That the
individual had no prior occupational dose during the current calendar quarter,
or
(ii) The nature and amount of
any occupational dose which the individual may have received during the
specifically identified current calendar quarter, from sources of radiation
possessed or controlled by other persons.
(2) Each licensee or registrant shall
maintain records of such statements until the board authorizes
disposition.
(b) Before
permitting, pursuant to
410
IAC 5-4-2(b), any individual in a
restricted area to receive an occupational radiation dose in excess of the
standards specified in
410
IAC 5-4-2(a), each licensee or
registrant shall:
(1) obtain a certificate on
board form "Y" or on a clear and legible record containing all the information
required in that form, signed by the individual, showing each period of time
after the individual attained the age of 18 in which the individual received an
occupational dose of radiation; and
(2) calculate on board form "Y" in accordance
with the instructions appearing therein, or on a clear and legible record
containing all the information required in that form, the previously
accumulated occupational dose received by the individual and the additional
dose allowed for that individual under
410
IAC 5-4-2(b).
(c)
(1) In
the preparation of board form "Y," or a clear and legible record containing all
the information required in that form, the licensee or registrant shall make a
reasonable effort to obtain reports of the individual's previously accumulated
occupational dose. For each period for which the licensee or registrant obtains
such reports, he shall use the dose shown in the report in preparing the form.
In any case where a licensee or registrant is unable to obtain reports of the
individual's occupational dose for a previous complete calendar quarter, it
shall be assumed that the individual has received the occupational dose
specified in whichever of the following columns that apply:
Part of Body | Column 1 Assumed Dose in Rems for Calendar Quarters Prior to January 1, 1961 | Column 2 Assumed Dose in Rems for Calendar Quarters Beginning on or After January 1, 1961 |
Whole body, gonads, active blood-forming organs, head and trunk, lens of eye | 3¾ | 1¼ |
(2)
The licensee or registrant shall retain and preserve records used in preparing
board form "Y" until the board authorizes their disposition. If calculation of
the individual's accumulated occupational dose for all periods prior to January
1, 1961, yields a result higher than the applicable accumulated dose value for
the individual as of that date, as specified in
410
IAC 5-4-2(b)(2), the excess may be
disregarded.
Notes
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