Dose Limitations, Nonoccupational Exposure (AR 40-14)

TM 55-315

specific written instructions for maintaining the exclusive-use shipment controls. The instructions shall be included with

the shipping papers.

d. Packages exceeding the radiation level or transport index prescribed in a above shall not be transported by

aircraft. See paragraph 3-3a for more information.

e. The written instructions required for exclusive-use shipments must be sufficient so that, when followed, they will

cause the carrier to avoid actions that would unnecessarily delay delivery or result in increased radiation levels or

exposures.

3-14. Dose Limitations, Nonoccupational Exposure (AR 40-14)

Nonoccupational exposure of any person, such as a passenger, crew member, stevedore, and so forth (also animal

cargo), who do not normally work with ionization radiation will not exceed 0.5 rem in any calendar year.

NOTE

Normally transportation workers and handlers should be considered as subject to this

nonoccupational dose limitation.

3-15. Dose Limitations, Occupational Exposure (AR 40-14)

Exposure to ionizing radiation because of duties in direct support of the handling or use of radioactive materials will not

exceed the following limits:

a. The accumulated dose equivalent of radiation to the whole body, head and trunk, active bloodforming organs,

gonads, or lens of the eye will not exceed:

(1) 1.25 rems in any calendar quarter, nor

(2) 5 rems in any calendar year.

b. The accumulated dose equivalent of radiation to the skin of the whole body (other than hands or forearms),

cornea of the eye, and bone will not exceed:

(1) 7.50 rems in any calendar quarter, nor

(2) 50 rems in any calendar year.

c. The accumulated dose equivalent of radiation to the hands and wrists or the feet and ankles will not exceed:

(1) 18.75 rems in any calendar quarter, nor

(2) 50 rems in any calendar year.

d. The accumulated dose equivalent of radiation to the forearms will not exceed:

(1) 10 rems in any calendar quarter, nor

(2) 30 rems in any calendar year.

e. The accumulated dose equivalent of radiation to the thyroid, other organs, tissues, and organ system will not

exceed:

(1) 5 rems in any calendar quarter, nor

(2) 15 rems in any calendar year.

3-16. Special Dose Limitations for Persons Under 18 Years Old and Pregnant Women (AR 40-14)

Persons under 18 years old and women known to be pregnant will not be exposed to a whole body dose equivalent that

exceeds:

a. 2 millirems in any one hour, nor

b. 100 millirems in any seven consecutive days, nor

c. 500 millirems in any calendar year for persons inder 18 years old, nor

d. 500 millirems during the entire gestation period for pregnant women, nor

e. More than 10 percent of the values in paragraphs 3-15a through e above for other areas of the body.

3-17. Dose Limitations and Relationships to Packaging

The dose limitations in paragraphs 3-14 through 3-16 above will not be interpreted as requiring the shipper that is,

consignor to reduce the radiation levels for packages of radioactive material below the permissible levels given in

chapter 4 of this manual.

3-18. Compliance With Dose Rate and Contamination Limits

To ensure compliance with the dose rates and contamination limits, each package shall be checked with appropriate and

properly calibrated instruments. This check will be done when materials are accepted for shipment and also before they

are loaded for movement and released to the carrier. The package check will ensure that the dose rate and

contamination level are below the maximum permissible transport limits. If the instruments, or competent people to use

them, are not available in the installation transportation officer's (ITO) office, the ITO will request this evaluation from the

installation health physicist, radiation protection officer, or other competent person. The person making the radiation

level check will certify that the contamination level and dose rate are below the permissible standards.

This certificate will become a part of the shipping document.

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