In a memo dated July 22, the Occupational Safety and Health Administration (OSHA) announced that it was revising its interpretation of the “retail facilities” exemption from its Process Safety Management (PSM) standard, as codified at 29 C.F.R. § 1910.119(a)(2)(1). The PSM standard requires employers to manage hazards associated with processes involving highly hazardous chemicals. The standard exempts retail facilities and for years OSHA interpreted that exemption to apply to employers who derived more than 50% of…