This form is used by employers to notify the Ministry of Labour before beginning construction work on a tunnel, shaft, caisson or cofferdam.

This form is used by mining companies to notify the Ministry of Labour of reportable incidents as identified in section 53 of the Occupational Health and Safety Act and section 21(5) of the Regulation for Mines and Mining Plants. It includes notification of groundfall or rockburst and vehicle incident or fire.

This form is used by the operator of a surface magazine or a mine using explosives to notify the Ministry of Labour and the joint health and safety committee or health and safety representative, if any, before first use of a surface magazine or explosives and annually after first use.

This form is used by employers in the mining sector to notify a Ministry of Labour inspector before a test drill is operated at the surface to prove mineral bearing substances, rock, earth, clay, sand or gravel.

This form is used by employers to notify a Ministry of Labour inspector of: the installation of portable crushing, screening or associated washing equipment or to notify of exploring, dewatering or resuming work at a mine where mining operations have been suspended for more than three months.

This form is used by constructors or employers to notify the Ministry of Labour before beginning a Type 3 asbestos removal operation and certain Type 2 asbestos removal operations in Ontario.

This form is used by employers, contractors or sub-contractors to notify the Ministry of Labour prior to carrying out window cleaning work at a building in Ontario if a suspended scaffold, boatswain's chair or similar single-point equipment is to be used.

This form is used by constructors to notify the Ministry of Labour, before work is begun at a construction project, if the project includes work on a trench more than 1.2 metres deep into which a worker may enter.

This form is used by employers to notify the Ministry of Labour prior to the start of a diving operation in Ontario.