Chemical-sector groups suing EPA over its rule overhauling the requirements for TSCA risk evaluations of existing chemicals are previewing broad arguments that the rule is unlawful or even unconstitutional, though they are not yet naming specific provisions they will seek to overturn.
September 17, 2026
Chemical-sector groups suing EPA over its rule overhauling the requirements for TSCA risk evaluations of existing chemicals are previewing broad arguments that the rule is unlawful or even unconstitutional, though they are not yet naming specific provisions they will seek to overturn.
The Biden administration has released its latest Unified Agenda of regulatory actions, detailing updated timelines for a host of long-pending OSHA policies along with a single newly announced rulemaking process where the agency says it plans to consider whether to approve a new fit-testing protocol for respiratory protective gear.
An employer attorney says the Supreme Court’s reversal of its long-standing Chevron deference doctrine bolsters the odds that a court will reverse OSHA’s new rule governing employee representatives’ roles in inspection walkarounds and will encourage the targets of enforcement actions to challenge whatever standards the agency cites them for violating.
The Supreme Court will not take up an employer’s suit that claimed OSH Act provisions giving OSHA authority to craft long-term safety standards as “appropriate” are unconstitutional, denying a bid to drastically expand the “nondelegation” doctrine limiting Congress’ ability to grant agencies rulemaking discretion.
OSHA has released its proposed nationwide heat illness and injury prevention standard after years of development, closely following the outline it previewed to agency advisors earlier this year that mandates written safety plans at both indoor and outdoor work sites, with triggers for action based on either heat index or wet bulb globe temperature (WBGT) measurements.
The Supreme Court has held that the Administrative Procedure Act (APA) does not require lawsuits over OSHA and other agencies’ rules and “final agency action” to begin within six years of their promulgation but rather within six years of when a party was first injured by a particular policy -- a precedent that could open the door for a “tsunami” of wide-ranging challenges to long-settled policies.
The Supreme Court has overruled its 40-year-old Chevron doctrine granting deference to OSHA and other agencies’ interpretations of ambiguous statutory language, scrapping a principle that was the basis for countless decisions on the lawfulness of agency rules, guidance and other actions.
The Supreme Court has adopted a new, stringent standard for regulatory agencies to justify sending enforcement actions to administrative law judges (ALJs) for review rather than federal courts, but the majority appears to hold up the OSH Act as an example of a law that passes its test, signaling that OSHA could avoid major impacts from the precedent.
The industry coalition suing EPA over its controversial update to the risk management program (RMP) says it will ask a federal appellate court to scrap four aspects of the rule in particular -- those that mandate third-party audits, “safer technology” analyses, public transparency, and adoption of new “generally accepted” engineering practices.
