Apply for L4 - Licence to keep or possess radioactive materials for use (other than sale)
National Environment Agency (NEA)
For Business Users only
This licence is only for business users with a registered Unique Entity Number (UEN).
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This licence is required for applicants intending to buy, purchase, keep, store or possess for use radioactive materials or devices containing radioactive materials.
Do I need to apply for this licence?
This licence is required if you intend to store, keep or possess radioactive materials or devices containing radioactive materials. These include, but are not limited to:
- Radioactive Lightning conductor
- Smoke detector
- Gamma projector
- Moisture gauge
- Gas chromatograph
- Vapour detector
- Gamma knife
- SPECT or PET radiopharmaceuticals
- Level gauge
- Density gauge
- Static eliminator
- Radioactive materials
- Ores or any substances containing radioactive isotopes (above) the exemption limits.
Your organisation should apply for a new licence at least 2 weeks before and no earlier than 6 weeks before receiving the radioactive material.
What conditions do I need to fulfil?
i. The company must have a valid UEN.
ii. For medical devices, HSA approval must be obtained.
iii. The company must comply with the Radiation Protection Act and its subsidiary Regulations, in particular the Radiation Protection (Ionising Radiation) Regulations.
iv. The company must provide a disposal / waste management plan and must be able to re-export all unsold materials.
v. To use, handle, transport or supervise the use of radioactive materials, there must be a user with an L6 licence or applying for an L6 licence to use the material under this application.
What supporting documents do I need to submit?
i. Technical specifications / brochures
ii. Floor plans, layout
iii. Radiation safety manual
iv. Waste management plan
How soon can my application be processed?
Complete applications with the necessary supporting documents will typically be processed within 10 working days upon reception of the submission. Licence applications that require pre-licence inspections and/or licence applicants who are instructed to sit for a qualifying test may require a longer period of time (4 - 8 weeks or more).
How much does this licence cost and how long is it valid?
The licence costs $155 per year and is valid for 3, 6, 9, 12 or 24 months.
Who can I contact for further details?
For licensing enquiries, please contact the National Environment Agency Call Centre at 1800-2255632 or 1800-CALL NEA or (65) 6225 5632 (from overseas). You can also email us at contact_NEA@nea.gov.sg.
How do I pay for the licence fees?
Payment may be made online via Credit Card when submitting the licence application. GIRO payment is also possible for customers with existing GIRO arrangement with RPNSD. To set up a GIRO account, please complete and submit the GIRO application form found on the NEA website: https://www.eportal.nea.gov.sg > Categories > Radiation Safety > eServices and Forms > GIRO Application Form for Radiation Licences. Cheque payment will no longer be accepted. Licence fees paid or submitted are not refundable.
How do I change the profile information (e.g. contact details) associated with my radiation licences?
For company: Licence cannot be transferred to a different UEN. To change UEN, existing licences will need to be cancelled and reapplied under the new UEN.
To amend your company details (e.g. contact person name, contact number, email address) registered with RPNSD, please email NEA RPNSD with the current information to be amended and the updated information.
What other approval is needed in order to supply or possess a medical device?
Medical devices are controlled under the Health Products Act administered by the Health Science Authority (HSA). Radiation emitting medical equipment are required to be registered and/or authorised by HSA before the equipment can be supplied in Singapore. Your company should check with MDB/ HSA concurrently to find out the relevant requirements when you are preparing for the radiation licence application. Certain types of radiation emitting equipment may only be possessed by medical and/or healthcare establishments, and may only be used by registered medical and healthcare professionals at places registered with the Ministry of Health.
Where can I find more radiation regulatory and licensing information?
You may refer to the radiation safety webpage on NEA's website.
Where is RPNSD located?
RPNSD (Radiation Protection and Nuclear Science Department) is a department within the National Environment Agency (NEA). Our office is located at the 3rd Storey of the Annex Block of Environment Building at 40 Scotts Road. The nearest MRT station is Newton. Our mailing address is:
Radiation Protection and Nuclear Science Department
National Environment Agency
3rd Storey, Annex Block
40 Scotts Road, Singapore 228231
Licence Fees: $155 per year.
- Radioactive Materials Information
Technical specifications, brochures etc.
- Floor Plans / Site Layout
Please provide the floor plan and layout of the storage / installation site.
- Radiation Protection Plan
Please submit Radiation Protection Plan (RPP) and relevant Standard Operating Procedures (SOP). These should include the waste management and emergency response plans.
- Other Supporting Documents
Other relevant supporting documents.
ACRA - Registration for Companies / Business
NEA L6 - Licence to use, handle, and transport radioactive materials (other than sale)