R 333.5067 Control of access to high radiation areas.

Rule 67. (1) A registrant shall ensure that each entrance or access point to a high radiation area has 1 or more of the following control features: (a) A device that, upon entry into the area, causes the radiation level to be reduced below the level where an individual could receive a deep dose equivalent of 1 millisievert (100 mrem) in 1 hour at 30 centimeters from the source of radiation or from any surface that the radiation penetrates. (b) A device that energizes a conspicuous visible or audible alarm signal so that the individual entering the high radiation area and the supervisor of the activity are made aware of the entry. (c) Locked entryways, except when access to the area is required, with positive control over each individual entry. (2) In place of the controls required for a high radiation area by subrule (1) of this rule, a registrant may substitute continuous direct or electronic surveillance that is capable of preventing unauthorized entry. (3) A registrant or applicant for a registration may apply to the department for approval of alternative methods for controlling access to high radiation areas. (4) A registrant shall establish the controls required by subrules (1) and (3) of this rule in a way that does not prevent individuals from leaving a high radiation area. (5) The registrant is not required to control entrance or access to rooms or other areas containing radiation machines capable of producing a high radiation area as described in subrule (1) of this rule if the registrant meets all the specific requirements for access and control specified in other applicable parts of these rules.