Singapore legislation
Regulation 63
of Radiation Protection (Ionising Radiation) Regulations 2023
Regulation 63
Discharge of radioactive materials to environment
Subregulation 1
Before seeking approval to discharge any radioactive material to the environment, an applicant must —
determine the characteristics and activity of the material to be discharged, and the possible points and methods of discharge;
determine by an appropriate pre‑operational study all significant exposure pathways by which discharged radionuclides could give rise to exposure of members of the public;
assess doses to the representative person due to the planned discharges;
consider the radiological environmental impacts in an integrated manner with features of the system of protection and safety, as required by the Director‑General; and
submit to the Director‑General the findings from sub‑paragraphs (a) to (d) as an input to the establishment by the Director‑General of authorised limits on discharges and conditions on their implementation.
Subregulation 2
Every approved person, in addition to the requirements of paragraph (1), must —
keep all radioactive discharges as far below the authorised limits as is reasonably achievable;
monitor and record the discharges of radionuclides with sufficient detail and accuracy to demonstrate compliance with the authorised discharge limits and to permit estimation of the exposure of the representative person;
maintain an appropriate management system for the activities related to effluent or environmental monitoring;
report discharges to the regulatory body at intervals as may be specified by the Director‑General; and
promptly report to the Director‑General any discharges that will exceed the authorised limits.
Subregulation 3
In paragraph (1), “representative person” means an individual who receives a dose that is representative of the doses to the more highly exposed individuals in the population exposed to the radiation from the material mentioned in that paragraph.