Me. Rev. Stat. tit. 26, § 565

The board shall formulate and adopt reasonable rules, pursuant to Title 5, chapter 375, subchapter 2, for safe and healthful working conditions, including rules requiring the use of personal protective equipment, monitoring and record keeping. The rules must at a minimum conform to federal standards of occupational safety and health so that the state program can be federally approved as a public employee only occupational safety and health program.