Bottom line: After the April 28, 2026 methylene chloride deadline, the next TSCA solvent chemistry facing federal restrictions is perchloroethylene (PCE / perc / tetrachloroethylene) and trichloroethylene (TCE). Final rules were published in December 2024. Effective dates are being tested in court, but shops that use these solvents should plan substitutions now on the same timeline as MeCl — not wait for the litigation to resolve.
The two chemistries at issue
Trichloroethylene (TCE) — CAS# 79-01-6. Historically used in metal degreasing, spot cleaning, adhesives, and some aerosol products. EPA finalized a rule on December 17, 2024 (89 FR 102568) prohibiting most commercial and industrial uses on a phased schedule.
Perchloroethylene / PCE / perc — CAS# 127-18-4. Historically used in dry cleaning, brake cleaners, degreasers, and some aerosol formulations. EPA finalized a rule on December 18, 2024 (89 FR 103028) with a phase-out of most uses over 6-10 years, allowing limited use under strict workplace protection programs.
Why body shops and refinishers should care
These solvents show up in more shop products than most operators realize:
- Aerosol brake cleaners and some parts washers (PCE)
- Metal degreasers and dip-tank formulations (TCE)
- Certain adhesive removers and spot cleaners (both)
- Older paint-stripping and rust-removal chemistries (both)
- Some contact adhesives (TCE)
Check the SDS for every degreaser, spot cleaner, and brake cleaner in your shop. Look for CAS# 79-01-6 (TCE) or 127-18-4 (PCE) in Section 3.
Current status: rules are final, litigation is active
Both final rules have been challenged in federal court. As of 2026, the phased effective dates in the final rules remain the operating deadlines shops need to plan against — courts have not vacated the underlying regulations. Some compliance dates may shift; the substitution requirement itself is unlikely to be reversed given the underlying scientific record.
Practical guidance: plan substitutions on the December 2024 rule timeline. If courts push a specific deadline out, that's a bonus. But shops that wait until final resolution risk being caught mid-transition when their supplier discontinues a product line.
Supply-side reality: manufacturers are already moving
Independent of the litigation, major solvent manufacturers have publicly announced discontinuation of PCE- and TCE-containing products or reformulation to alternative chemistries. This means the product you use today may quietly disappear from your distributor's catalog well before any legal deadline. Confirm with your supplier what they'll still carry in 12 months.
Compliant alternatives
Alternative chemistries for common shop applications:
- Brake cleaners: non-chlorinated solvent blends (typically acetone / heptane / methanol / ethanol formulations). Read the label carefully — the non-chlorinated versions have very different flammability profiles and require different storage and disposal.
- Metal degreasers: water-based alkaline cleaners for batch/tank work; citrus and soy solvent blends for spray applications; dibasic ester (DBE) blends for tough coatings.
- Spot / adhesive removers: benzyl alcohol blends, d-limonene / citrus formulations, or specialized non-halogenated products from major coatings manufacturers.
What to do now
- SDS audit. Same drill as the MeCl audit — pull every solvent SDS and flag CAS# 79-01-6 or 127-18-4 in Section 3.
- Talk to your suppliers. Ask which of their PCE/TCE products they'll continue carrying and which they've committed to reformulate. Get the answer in writing.
- Pilot substitutes on non-critical work first. Non-chlorinated brake cleaners behave differently — more flammable, different residue, different dry time.
- Update SDSs, SOPs, and hazcom training. New chemistry means new safety data and new employee training.
- Document the transition. Insurance carriers and OSHA inspectors are already tracking substitution progress.
Need help sourcing?
We can help spec and source compliant substitutes for your current PCE/TCE products. Call (800) 381-0149 or email orders@sprayboothservices.net.
Related
Sources: EPA final TCE rule, 89 FR 102568 (Dec 17, 2024); EPA final PCE rule, 89 FR 103028 (Dec 18, 2024); TSCA §6(a).
Educational content, not legal advice. Consult your state agency, insurance carrier, and chemical suppliers for site-specific requirements. Litigation status may affect effective dates — verify current deadlines with EPA or trade counsel before making commitment decisions.