Singapore legislation
Regulation 32
of Radiation Protection (Ionising Radiation) Regulations 2023
Regulation 32
Classification of areas
Subregulation 1
Every licensee must designate as a controlled area any area in which specific measures for protection and safety are or could be required for —
controlling exposures or preventing the spread of contamination in normal operations; and
preventing or limiting the likelihood and magnitude of exposures in anticipated operational occurrences and accident conditions.
Subregulation 2
Every licensee must —
determine the boundaries of any controlled area on the basis of the likelihood and magnitude of expected exposures and the type and extent of the procedures required for protection and safety;
delineate controlled areas by physical means or, where this is not reasonably practicable, by some other suitable means;
where a source is only intermittently brought into operation or energised or is moved from place to place, delineate an appropriate controlled area by means that are appropriate to the prevailing circumstances and specify exposure times;
establish measures reasonably necessary for occupational protection and safety, including physical measures to control the spread of contamination and the internal or corporate rules and procedures for controlled areas;
restrict access to controlled areas by means of administrative procedures and by physical barriers, which could include locks or interlocks, the degree of restriction being commensurate with the likelihood and magnitude of exposures;
provide, as appropriate, at entrances to controlled areas —
personal protective equipment;
equipment for individual monitoring and workplace monitoring; and
suitable storage for personal clothing;
provide, as appropriate, at exits from controlled areas —
equipment for monitoring for contamination of skin and clothing;
equipment for monitoring for contamination of any objects or material being removed from the area;
washing or showering facilities and other personal decontamination facilities; and
suitable storage for contaminated personal protective equipment;
periodically review conditions to assess whether there is any need to modify the measures for protection and safety or the boundaries of controlled areas; and
provide appropriate information, instruction and training for persons working in controlled areas.
Subregulation 3
Every licensee must designate as a supervised area any area not already designated as a controlled area, but where occupational exposure conditions need to be kept under review even though specific protection measures and safety provisions are not normally needed.
Subregulation 4
Every licensee must take all the following measures which are appropriate to the nature, likelihood and magnitude of exposures or contamination in the supervised areas:
delineate the supervised areas;
display approved signs at access points to supervised areas;
periodically review the conditions to assess whether there is any need for further measures for protection and safety or any need for changes to the boundaries of supervised areas.