Code of Massachusetts Regulations
105 CMR - DEPARTMENT OF PUBLIC HEALTH
Title 105 CMR 120.000 - The Control of Radiation
REPORTS
Section 120.319 - Permanent Radiographic Installations

(A) Permanent radiographic installations shall have high radiation area entrance controls of the type described in 105 CMR 120.227(A)(2) and (3) and (B).

(B) Each entrance that is used for personnel access to the high radiation area shall have both conspicuous visible and audible warning signals to warn of the presence of radiation. The visible signal shall be activated by radiation. The audible signal shall be activated when an attempt is made to enter the installation while the source is exposed.

(C) The control device or alarm system shall be tested for proper operation with a source of radiation at the beginning of each day of equipment use. The test shall include a check for the visible and/or audible signals. Entrance control devices that reduce the radiation level upon entry as described in 105 CMR 120.227(A)(1) shall be tested monthly. If a control device or alarm system is operating improperly, it shall be immediately labeled as defective and repaired within seven calendar days. The facility may continue to be used during this seven-day period, provided the licensee or registrant implements the continuous surveillance requirements of 105 CMR 120.331, ensures that radiographic personnel use an alarming ratemeter, and complies with the requirements of 105 CMR 120.330(B). Records of these tests shall be maintained for Agency inspection for five years.