Arizona OSHA State Plan and jurisdiction
Arizona operates an OSHA-approved State Plan that covers most private-sector employers and all state and local government employers. The Arizona Division of Occupational Safety and Health (ADOSH), part of the Industrial Commission of Arizona, administers workplace safety enforcement under Arizona Revised Statutes Title 23, Chapter 2, Article 9. Federal OSHA retains jurisdiction over federal government employers (including the U.S. Postal Service), maritime employment, employment on Indian lands, copper smelters, and concrete and asphalt batch plants physically connected to mines. ADOSH adopts federal OSHA standards by reference and enforces standards at least as effective as federal requirements.
Source: OSHA Arizona State Plan; 29 CFR 1952.19; A.R.S. § 23-401
Injury and illness recordkeeping — OSHA 300 Log requirement
Arizona employers with more than 10 employees at any time during the previous calendar year must maintain records of work-related injuries and illnesses using OSHA Forms 300 (Log of Work-Related Injuries and Illnesses), 300A (Annual Summary), and 301 (Incident Report), unless the establishment is classified in a partially exempt low-hazard industry. ADOSH enforces federal recordkeeping requirements under 29 C.F.R. Part 1904, which State Plan states must apply in a manner substantially identical to federal OSHA. The Form 300A Summary must be posted annually from February 1 to April 30 in a location visible to all employees.
Source: 29 C.F.R. § 1904.1; 29 C.F.R. § 1904.37; ADOSH FAQ