Section 144-220-H-6 - Operating requirementsA. Procedures. Normal operating procedures shall be written and available to all radiation machine operators. No person shall be permitted to operate radiation machines in any manner other than that specified in the procedures unless such person has obtained written approval of the radiation safety officer.B. Bypassing. No person shall bypass a safety device unless such person has obtained the approval of the radiation safety officer. Such approval shall be for a specified period of time. When a safety device has been bypassed, a readily discernible sign bearing the words "SAFETY DEVICE NOT WORKING," or words having a similar intent, shall be placed on the radiation source housing.C. Repair or modification of radiation machines. Except as specified in H.6.B, no operation involving removal of covers, shielding materials or tube housings or modifications to shutters, collimators, or beam stops shall be performed without ascertaining that the tube is off and will remain off until safe conditions have been restored. The main switch, rather than interlocks, shall be used for routine shutdown in preparation for repairs.D. Radioactive source replacement, testing, or repair. Radioactive source housings shall be opened for source replacement, leak testing, or other maintenance or repair procedures only by individuals authorized to specifically conduct such procedures under a license issued by the U.S. Nuclear Regulatory Commission, or an Agreement State.E. Whenever x-ray work is performed at a location other than a permanent installation, the radiographer must notify the requesting site's radiation safety officer or the person responsible for safety matters for those site's that do not have a radiation safety officer, before taking or utilizing radiation machines on the jobsite.10-144 C.M.R. ch. 220, § H-6