The White House Office of Management and Budget (OMB) has completed its review of EPA’s proposal to regulate trichloroethylene (TCE), setting the stage for renewed debate on which of two potential workplace exposure limits the agency should apply after a years-long clash over the solvent’s potential links to fetal heart defects.
September 16, 2026
Major unions are asking EPA to reconsider its proposed TSCA rule that would allow employers to continue active uses of carbon tetrachloride (CTC) with stricter worker protections, arguing both that the agency has overlooked some applications of the solvent entirely and that it should ban those where it “lacks evidence” firms can meet a strict exposure limit.
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Trade groups and companies say EPA’s proposed TSCA rule for carbon tetrachloride (CTC) rests on an illegally strict workplace exposure limit, and improperly cuts OSHA out of the rulemaking process despite a statutory mandate to consult with peer agencies before treading into areas they regulate, among a host of other attacks.
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Echoing chemical industry groups, Sens. Joe Manchin (D-WV), Shelley Moore Capito (R-WV) and J.D. Vance (R-OH) are pressing EPA to rework its proposed TSCA rule regulating methylene chloride to allow all uses of the solvent to continue as long as companies meet worker-protection mandates.
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Trade groups and individual companies are starting to raise concerns on EPA’s draft supplement to the Trump-era TSCA evaluation of 1,4-dioxide, in particular an occupational exposure limit the agency quietly floated in early August, arguing in early comments that it may not be feasible along with several other broad concerns for the new review.
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Labor and environmental groups are pressing EPA to tighten its proposed rule limiting industrial use of perchloroethylene (PCE) in part by banning more uses of the solvent or even phasing it out entirely, saying the agency is relying too much on personal protective equipment (PPE) to protect workers while also neglecting risks to fenceline communities.
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Charging their members are currently shut out of data that could be crucial to their safety, labor unions are urging EPA to require employers turn over a wide range of information on their TSCA new-chemical applications and compliance orders and are proposing a framework based on OSHA policies they say would protect confidential materials.
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Industry groups are calling on EPA to rework its proposed TSCA rule for the solvent perchloroethylene (PCE) but are split on what approach it should adopt, with some seeking a more flexible policy under the chemicals law while at least one is pushing the agency to drop its worker-safety proposals and advance them through a joint rulemaking with OSHA.
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A National Academies of Science, Engineering and Medicine (NASEM) peer-review panel has broadly endorsed EPA’s draft risk assessment of formaldehyde that adopted controversial research linking workplace exposures to the chemical with leukemia, potentially opening a door for rules based on those findings, but industry is challenging the review process in court.
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An industry attorney is floating a wide range of legal critiques of EPA’s proposed TSCA rule for the solvent perchloroethylene (PCE or perc), including an argument that it is unlawfully regulating in an area that OSHA has already addressed -- even though the workplace safety agency says its chemical-exposure rules are outdated.
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