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Renew a registration for workplace safety and health officer

You should renew your workplace safety and health (WSH) officer certificate at least 60 days before it expires.

At a glance

When to renew

At least 60 days before expiry. You’ll receive an email renewal notice.

Update your contact details to receive the notice on time.
Who can renew Registered WSH officer
How much it costs $60.
Fees are non-refundable, regardless of the status of your application.
How long it takes Up to 4 weeks.
Related eServices

Registration for WSH Professionals and Competent Persons

Submit Safety Development Units (SDUs)


To renew your WSHO certificate, you need:

  • 40 Safety Development Units (SDUs):
    • 40 SDUs must be from categories 1, 2 or 3 subject to the maximum number of SDUs allowed for each category.
    • If you submitted more than 40 SDUs, you will not be allowed to carry forward any excess SDUs.
  • A recent colour photo. The photo must:
    • Be taken against plain white background without shadows.
    • Be taken within the last 3 months.
    • Show your full face without headgear.
      Headgear worn in accordance with religious or racial customs is acceptable, but must not hide your facial features.
    • Be in JPG format.
    • Be about 150 Kb in file size.
    • Have the dimensions 400 px (width) by 514 px (height).

WSHO sample photo

SDU framework

The revised SDU framework will be based on three categories:

1 - WSH in-employment practiceShow

Capped at 20 SDUs per renewal cycle.

20 SDUs for WSHOs in WSH employment or roles in the past 2 years, including WSH practice overseas.

Supporting documents required:

  • Employment letter
  • Appointment letter
  • Testimonial letter

2 - Attending accredited trainingShow

No cap in SDUs

Tier 1

40 SDUs for selected postgraduate, degree studies, or leadership programmes.

1 SDU for every 1 hour, capped at 20 SDUs

  • Soft skill courses such as conflict resolution, or stakeholder management courses
  • Managerial-level WSH courses
  • Supportive WSH training such as process safety, WSH auditing, combustible dust hazard, or complex lifting trainings

Tier 2

1 SDU for every 2 hours, capped at 10 SDU

  • Selected supervisory and technical training such as supervise metal scaffold erection or supervise marine work for WSH trainings, excluding refresher courses

Supporting documents required:

  • Final course certificate from training provider
  • Final attendance email from training provider for trainings without certificate
Only SDUs approved by the CPD Board with a valid CPD approval code will be accepted.
Not all training courses offered by Learning Service Providers (LSP) qualifies for SDUs. You need to check with the LSP or CPD Board if the course is accredited for SDUs.

3 - Other WSH contributions or attending unaccredited WSH trainingShow

Capped at 10 SDUs per renewal cycle

Types of other WSH contributions Number of SDUs given and supporting documents required
Participation in professional boards, committees or societies as an executive or appointed member

4 SDUs per appointment

Appointment letter from the board, committee, or society

Professional ordinary membership
2 SDUs per organisation

Membership card, letter, or certificate from organisation
Conduct accredited WSH courses and trainings 2 SDUs per lecture hour

Official training timetable or letter from training provider
Contribution as a writer or editor of WSH papers or published articles

5 SDUs per paper or article

Copy of paper or published article

Note: Article must be published on reputable WSH related media such as WSH bulletin, newspaper, conference, seminar, or workshop.
In-house articles are not accepted

Registered engineering patents
10 SDUs per patent

Registration certificate with your name and registration number
WSH contributions at national or industry level
1 SDU for every 2 hours

Letter from organiser or authority
Attending unaccredited internationally recognised WSH courses and trainings

1 SDU for every 2 hours

  • Final course certificate from training provider
  • Final attendance email from training provider for trainings without certificate

SDUs obtained under previous SDU framework will still be accepted for your current renewal cycle if the SDUs are obtained within 2 years from registration expiry date.

How to check or submit SDUs

You can log in to check your current SDUs or submit new SDUs.

Please upload the documents required for each category to support your renewal.

How to renew

Processing time: Up to 4 weeks. May take longer if more information or documents are required.

  1. Log in to renew.
  2. Ensure that your address and contact details are correct
  3. Choose Renew Certificate to submit your renewal.
  4. Pay the $60 fee online. Your application will only be processed upon payment.
  5. Receive the outcome by post. You will receive your WSH Officer registration card by post if your renewal is successful.

If your licence has expired

You can still renew your certificate if it has expired for less than one year.

However, if you wish to renew your certificate after more than one year of expiry, you can proceed to renew your licence if you meet the following requirements:

  • Obtained 40 SDUs.
  • Submit professional work review write-up on your past 2 years’ practical working experience in WSH field of work, including testimonials from employers.
  • Submit a cover letter on the reason for the lapse in the renewal.
  • Additional documents maybe required
  • If you are holding the old SOTC, COSH or WSHOC qualification, you will also need to obtain and submit the “Risk Management Test for WSHOs” certificate.
    : This test is only offered by Singapore Institution of Safety Officers and is only required once. You do not need to submit the certificate again if you have submitted it before.