The head contractor for Commonwealth funded building work that is required to have a WRMP must have a 'fitness for work' policy as part of the WRMP. A fitness for work policy that complies with the drug and alcohol testing requirements in the Building Code 2013 will also comply with the Code.
No. Your obligations on existing Building Code 2013 projects don’t change once you become a code covered entity. However, you’ll be required to comply with the Code on any new projects, including private projects that you express interest in or tender for after becoming a code covered entity.