4(2)Subject to subsection (3), where a place of employment is a project site, the contractor shall provide and maintain first aid kits, first aid providers and first aid rooms in accordance with the standards established in subsection 7(0.1) and with Schedule A for all persons having access to the project site, and the provisions of this Regulation that apply to an employer apply to a contractor at every project site for which the contractor is responsible for the health and safety of persons having access to the project site.