EFFECTIVEFederalFeb 5, 2021✓ Human reviewed

EPA restricted 2,4,6-TTBP in fuel additives, injector cleaners and lubricant additives

EPA finalized TSCA restrictions on 2,4,6-TTBP, including distribution limits intended to prevent its use in fuel additives and fuel-injector cleaners by consumers and small commercial operations such as automotive repair shops. The rule took effect February 5, 2021.

TSCAfuel additiveschemicals
What to check

Check fuel-additive, injector-cleaner and lubricant products and supplier documentation for 2,4,6-TTBP restrictions before purchasing, stocking or distributing affected products.

Official evidence

Source and verification

Verified
Sep 20, 2026
Applies to
General mechanical, Transmission, Mobile repair, Mixed services, Dealership fixed ops
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