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AMENDATORY SECTION

WAC 246-221-010  
Occupational dose limits for adults.  (1) The licensee or

registrant shall control the occupational
dose to individual adults, except for

planned special exposures pursuant to WAC
246-221-030, to the following dose

limits:

    
(a) An annual limit, which is the more limiting of:

    
(i) The total effective dose equivalent being equal to 0.05 Sv (5 rem);
or

    
(ii) The sum of the deep dose equivalent and the committed dose equivalent

to any individual organ or tissue other than
the lens of the eye being equal to

0.50 Sv (50 rem).

    
(b) The annual limits to the lens of the eye, to the skin of the whole body, and to the skin of the extremities which are:

    
(i) A lens dose equivalent of 0.15 Sv (15 rem); and

    
(ii) A shallow dose equivalent of 0.50 Sv (50 rem) to the skin of
the whole body or to the skin of any extremity.

    
(2) Doses received in excess of the annual limits, including doses received

during accidents, emergencies, and planned
special exposures, must be subtracted

from the limits specified in WAC 246-221-030
for planned special exposures that

the individual may receive during the current
year and during the individual's

lifetime.

    
(3) The assigned deep dose equivalent ((and shallow dose equivalent)) shall be for the portion of the
body receiving the highest exposure.  The assigned shallow dose equivalent shall be the dose averaged over
the contiguous ten square centimeters of skin receiving the highest
exposure.  The deep dose

equivalent, lens dose equivalent and shallow
dose equivalent may be assessed

from surveys or other radiation measurements
for the purpose of demonstrating

compliance with the occupational dose limits,
if the individual monitoring

device was not in the region of highest potential
exposure, or the results of

individual monitoring are unavailable.

    
(4) Derived air concentration (DAC) and annual limit on intake (ALI)
values

are specified in WAC 246-221-290 and may be
used to determine the individual's

dose and to demonstrate compliance with the
occupational dose limits.

    
(5) Notwithstanding the annual dose limits, the licensee shall limit
the

soluble uranium intake by an individual to
10 milligrams in a week in

consideration of chemical toxicity.

    
(6) The licensee or registrant shall reduce the dose that an individual
may

be allowed to receive in the current year
by the amount of occupational dose

received while employed by any other person
during the current year as

determined in accordance with WAC 246-221-020.

[Statutory Authority:
RCW 70.98.050. 01-05-110, § 246-221-010, filed 2/21/01,

effective 3/24/01; 94-01-073, § 246-221-010,
filed 12/9/93, effective 1/9/94.

Statutory Authority: RCW 70.98.050 and 70.98.080.
91-15-112 (Order 184), §

246-221-010, filed 7/24/91, effective 8/24/91.
Statutory Authority: RCW

43.70.040. 91-02-049 (Order 121), recodified
as § 246-221-010, filed 12/27/90,

effective 1/31/91. Statutory Authority: RCW
70.98.080. 87-01-031 (Order 2450), §

402-24-020, filed 12/11/86. Statutory Authority:
RCW 70.98.050. 81-01-011 (Order

1570), § 402-24-020, filed 12/8/80; Order
1095, § 402-24-020, filed 2/6/76;

Order 1, § 402-24-020, filed 1/8/69; Rules
(part), filed 10/26/66.]