Permit-To-Work aka PTW system is a used in a workplace and/or construction site to ensure that any high-risks works are being carried out with the acknowledgement of project manager and safety assessors. Below are the 7 kinds of general building / engineering related works that requires PTW in Singapore;
- Demolition work
- Excavation and trenching work in tunnel or hole in ground exceed depth of 1.5 metres.
- Lifting operations (Mobile Crane, Crawler Crane, Tower Cranes, etc.)
- Piling works
- Tunneling works
- Working on a scaffold where a person could fall more than 2 metres
- Working in confined space.
Any person carry out the high-risk work without permit-to-work issue by the project manager shall be guilty of an offence and liable to be fined not exceeding S$ 20,000.