Federal OSHA; Pennsylvania has no OSHA-approved State Plan. Enforced by U.S. Department of Labor, Occupational Safety and Health Administration. Verified on the primary source, re-checked weekly.
Federal OSHA covers most private-sector employers statewide. Pennsylvania is not on OSHA's State Plan list, so state and local government workers are outside federal OSHA coverage.
Source: primary document
Statewide layer. County and city amendments sit on top; the building view resolves them from your ZIP.
In force, nothing scheduled
The federal layer applies in every state: OSHA's Hazard Communication update (91 FR 1695) sets November 20, 2026 for substances and May 19, 2028 for mixtures. State-plan states enforce it through their own agency.
Federal OSHA; Pennsylvania has no OSHA-approved State Plan. Federal OSHA covers most private-sector employers statewide. Pennsylvania is not on OSHA's State Plan list, so state and local government workers are outside federal OSHA coverage.
U.S. Department of Labor, Occupational Safety and Health Administration.
Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.
One address, every authority that can cite it, and a record of who saw what. Cancel anytime. Public pages stay free.