Singapore legislation
Regulation 19
of Workplace Safety and Health (Construction) Regulations 2007
Regulation 19
Revocation of permit-to-work
If the project manager of a worksite who, after issuing a permit-to-work in respect of any high-risk construction work, is of the view that the carrying out of the high-risk construction work poses or is likely to pose a risk to the safety, health and welfare of persons at work in the worksite, he may order the high-risk construction work to cease immediately and revoke the permit-to-work.