The International Organisation for Standardisation has published the ISO 45001:2018 Standard in March, 2018. A three-year moratorium has been given to all systems previously certified to OHSAS 18001:2007 to transit to the new Standard ISO 45001:2018.

SON-MSC will allow applications to be processed and on-going certification to the existing Standard (OHSAS 18001: 2007) up till October, 2020 considering that the publication of the new standard does not automatically mean cessation of the OHSAS 18001: 2007.

Re-assessment/re-certification and Surveillance audits can take place during period of co-existence; but all OHSAS 18001: 2007 certificates will have expiry dates of March, 2021 extended to September, 2021

New applicants are encouraged to apply straight to the new Standard ISO 45001: 2018. Clients are to take note of this please.

There are three transition program options for clients as follows:

Stand-alone transition audit: Client may choose to apply for transition audit regardless of its status in a valid certification audit program. Certificate after successful completion of audit will be issued reflecting the standing certification program of the client.

Validity of the certificate will last till the end of the certification program and the charge for the transition audit will be one-third of the initial certification man-day

Surveillance/Transition audit: A client may choose to have the transition audit combined with its surveillance audit within a valid certification audit program.

Validity of the certificate issued upon successful audit completion will be for the duration of the existing 3 year program of the client and will attract a charge of two-third of initial certification Man-day.

Recertification/Transition audit: A client may choose to have the transition audit combined with its recertification audit before the end of the moratorium.

On successful completion of the transition audit, a certificate will be issued reflecting the duration of a new 3 year certification program. The duration in man-day of the audit shall be equivalent to a full certification audit.

SON-MSC will accept a client undergoing surveillance with ISO 18001:2007 version till 30 September 2020. However, if a client on special note puts up a request not to be able to entertain ISO 45001:2018 version till 30 September 2020, then we may consider the client till 31 Jan, 2021. After, 31st January, 2021 no further audits for ISO 18001:2007 are permitted.

The last day to schedule any transition audit shall be 30th June 2021.

Please note that 1 June 2019 onwards SON-MSC was ready to take up any client requests audit against ISO 45001:2018.

Clients are welcome to state that they want the surveillance assessment to be a Transition & SON MSC shall perform it against ISO 45001:2018.


All clients shall be notified that they are required to close their Corrective Action Plans by June 2021.


The expiration date on any ISO 18001:2007 certificate issued after the publication of ISO 45001:2018 will be September 2021. Thus, it may appear that you are not being granted a full, three-year certificate. However, after successful Transition to ISO 45001:2018, the expiry date of your certificate will be amended to reflect a full three-year certification


When ready for the transition, the client is required to contact the SON-MSC for the relevant application form. Information received from the form will be reviewed. If adequate, the application will be accepted and a quote will be issued. The client will be scheduled for audit within a month to the payment after receiving a payment advice. On completion of the audit, a certificate will be issued expiry of which will be aligned to the existing three (3) years certification program of the client..