Code of Massachusetts Regulations
105 CMR - DEPARTMENT OF PUBLIC HEALTH
Title 105 CMR 120.000 - The Control of Radiation
SURVEYS AND MONITORING
Section 120.228 - Control of Access to Very High Radiation Areas

Universal Citation: 105 CMR 120.000 MA Code of Regs 120.228

Current through Register 1531, September 27, 2024

(A) In addition to the requirements in 105 CMR 120.227, the licensee or registrant shall institute measures to ensure that an individual is not able to gain unauthorized or inadvertent access to areas in which radiation levels could be encountered at five grays (500 rads) or more in one hour at one meter from a source of radiation or any surface through which the radiation penetrates at this level. This requirement does not apply to rooms or areas in which diagnostic x-ray systems are the only source of radiation.

(B) The registrant is not required to control entrance or access to rooms or other areas containing sources of radiation capable of producing a very high radiation area as described in 105 CMR 120.228(A) if the registrant has met all the specific requirements for access and control specified in other applicable parts of 105 CMR 120.000, such as, 105 CMR 120.300 for industrial radiography, 105 CMR 120.430 for x-rays in the healing arts, and 105 CMR 120.700 for particle accelerators.

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