OSHA may “broaden the circumstances” under which certain employers would be permitted to comply with its Respirable Crystalline Silica Standard for Construction, according to a request for information and comment issued by the agency last week. OSHA is looking for information on additional engineering and work practice control methods to effectively limit exposure to silica.

The Federal Motor Carrier Safety Administration (FMCSA) has unveiled five proposed changes to existing hours of service (HOS) rules for commercial motor vehicle drivers. Predictably, the revisions – which FMCSA says will increase safety and save money – are drawing mixed reactions. U.S. Transportation Secretary Elaine L. Chao said the changes would give commercial drivers more flexibility while maintaining the safety limits on driving time.

Health experts are cheering President Trump’s vow to ban flavored e-cigarettes, which they say are a major reason for the sharp rise in youthful vaping in the U.S. Trump made the announcement on Wednesday, noting “We can’t have our youth be so affected.” A half dozen recent deaths and hundreds of cases of lung disease across the country appear to be related to vaping, although the cases are still under investigation.

More than 130 organizations signed a petition (PDF) sent to OSHA, demands for stronger protections for workers exposed to extreme heat. Joining the petition were former OSHA Directors Dr. Eula Bingham and Dr. David Michaels, former California/OSHA Director Ellen Widess, heat illness prevention researcher Dr. Marc Schenker and 89 other individuals.