Singapore legislation
Regulation 3
of Radiation Protection (Ionising Radiation) Regulations 2023
Regulation 3
Exemptions
Subregulation 1
Subject to paragraph (2), the provisions of the Act do not apply to any import, export, possession, manufacture, transport, use, disposal, sale of or other dealing in the following radioactive substances:
a radioactive substance where the activity concentration —
of any radionuclide in the uranium decay chain or the thorium decay chain does not exceed 1 Bq/g; and
of any potassium‑40 does not exceed 10 Bq/g;
a radioactive substance in a moderate amount for which the total activity of a given radionuclide or its activity concentration does not exceed the level prescribed in Part 1 of the First Schedule;
a radioactive substance of solid material in bulk amount for which the activity concentration of a given radionuclide of artificial origin does not exceed the level prescribed in Part 2 of the First Schedule;
a radioactive substance of solid material in bulk amount for which the activity concentration of a given radionuclide of artificial origin exceeds the level prescribed in Part 2 of the First Schedule, but does not exceed the level prescribed in Part 1 of the First Schedule, provided that under all reasonably foreseeable circumstances the radioactive substance is not reasonably expected to result in any individual incurring an effective dose of the order of 10 μSv or more in a year, or in the case of low probability scenarios, an effective dose of not more than 1 mSv in a year;
a radioactive substance of solid material in bulk amount for which the activity concentration of a given radionuclide of natural origin does not exceed specific values derived so as to meet a dose criterion of the order of 1 mSv in a year.
Subregulation 2
The exemptions in paragraph (1)(b) to (e) do not apply to radioactive substances —
to be used in practices which are mentioned in regulations 5, 6 and 7 as practices which are not justified; or (b)to be disposed of as radioactive waste.
Subregulation 3
An educational institution which has in its possession or under its control any radioactive substance, being a sealed source, not exceeding 100 times the activity or activity concentration prescribed in the First Schedule with respect to that particular radioactive substance is exempted from section 6(1)(b) and (d) of the Act only in relation to that radioactive substance if —
the radioactive substance is used or to be used solely for demonstration, teaching or research purposes in the educational institution;
the radioactive substance is under the control of a competent employee or staff designated by the principal in the case of a primary or secondary school, or by the head of the relevant department, in the case of any other educational institution, to take full responsibility for the safe and secure storage and use of such radioactive substance and for the compliance with the relevant provisions of these Regulations relating to a sealed source; and
the complete details of the radioactive substance have been submitted to the Director‑General.
Subregulation 4
Any person who has in the person’s possession or under the person’s control not more than 3 sealed sources for the sole purpose of checking or calibrating a particular radiation survey or monitoring instrument, and each of which contains any radioactive substance not exceeding 175 kBq, is exempted from section 6(1)(b) and (d) of the Act only in relation to that radioactive substance and subject to all the following conditions:
the complete details of the radioactive substance have been submitted to the Director‑General;
that person must ensure compliance with the provisions of these Regulations relating to a sealed source; (c)that person must ensure the safe and secure storage and use of the radioactive substance.
Subregulation 5
The Act and all regulations made under the Act (except Parts 8 and 15 of these Regulations) do not apply to any radioactive substance which is implanted in or has been internally administered to an individual for medical purposes.
Subregulation 6
Any person having the control or management of a single station or non‑single station ionisation chamber smoke detector that —
contains a sealed source; and
complies with the recommendations of the Nuclear Energy Agency of the Organisation for Economic Co‑operation and Development or any other equivalent international standards or recommendations,is exempted from section 6(1)(b) and (d) of the Act, and from regulations 26 and 29 only in relation to that smoke detector.
Subregulation 7
The provisions of the Act do not apply to the import, export, possession, use or sale of or other dealing as specified in the Third Schedule in relation to the articles or irradiating apparatus specified in that Schedule.
Subregulation 8
Any person having the control or management of any thoriated tungsten welding electrode for the purpose of use in welding is exempted from section 6(1)(b) and (d) of the Act only in relation to that welding electrode.