The U.S. Environmental Protection Agency has finalized a rule extending key compliance deadlines under the Workplace Chemical Protection Program — WCPP — for two chemicals regulated under the Toxic Substances Control Act:

• Perchloroethylene (PCE) — a solvent widely used in dry cleaning, metal degreasing, and industrial processes
• Carbon tetrachloride (CTC) — used in chemical manufacturing, laboratory applications, and as a process solvent

The rule becomes effective immediately upon Federal Register publication on July 28, 2026. The extensions apply to non-federal covered operations; federal facilities operate under separate timelines.

The deadline extensions are not a suspension of the substantive exposure standards. The permissible exposure limits, existing control requirements, and the underlying WCPP framework remain in force. Facilities that have already implemented compliant programs are not required to roll them back.

Critically, dermal protection requirements were not extended for either chemical. Facilities must maintain existing dermal controls — gloves, protective clothing, skin-contact prevention measures — without interruption.

PCE remains the dominant solvent in professional dry cleaning. Dry cleaning businesses — including franchise operators, hotel laundry facilities, and commercial cleaners — must revise their WCPP compliance calendars but must not reduce existing dermal protection measures.

Industrial metal processors, automotive parts manufacturers, aerospace component fabricators, and precision machining operations using PCE or CTC for degreasing must update their compliance schedules. Vendor contracts for solvent supply and waste disposal should be reviewed to ensure that WCPP compliance responsibility is clearly allocated.

Companies manufacturing PCE, CTC, or downstream products containing these solvents face both WCPP obligations as employers and potential supply-chain obligations as manufacturers. The extensions affect workplace compliance timelines but do not alter product registration, reporting, or downstream notification requirements under TSCA.

Research laboratories, testing facilities, and analytical chemistry operations using CTC as a solvent or reagent must update their chemical hygiene plans and exposure monitoring schedules. Academic and commercial laboratories should confirm whether their operations qualify as covered non-federal operations under the WCPP rule.

Federal contractors operating facilities that use PCE or CTC should confirm whether their operations are subject to the non-federal or federal WCPP timeline. The extensions apply to non-federal covered operations; federal facility timelines are governed by separate EPA guidance.

For companies acquiring, leasing, or financing facilities that use PCE or CTC, the deadline extensions create specific due diligence considerations:

Acquisition Transactions

• Identify whether the target facility uses PCE or CTC in any process
• Review historical exposure monitoring records and any prior WCPP compliance documentation
• Allocate responsibility for completing WCPP compliance under the extended deadlines — the buyer or the seller
• Assess whether existing dermal protection measures are compliant and operational

Lease Transactions

• Determine which party — landlord or tenant — bears WCPP compliance responsibility under the lease
• Confirm that the lease addresses chemical use disclosure and compliance cost allocation
• Review indemnification provisions for TSCA violations and EPA enforcement actions

Financing Transactions

• Lenders financing facilities with PCE or CTC operations should include TSCA compliance representations in loan covenants
• Environmental due diligence should specifically address WCPP compliance status and the cost of completing compliance under the extended deadlines

Facilities using PCE or CTC should review their solvent supply and waste disposal contracts for:

1. Compliance cost allocation — Who bears the cost of exposure monitoring, engineering controls, and respiratory protection equipment?
2. Notification obligations — Does the supplier have obligations to notify the facility of regulatory changes affecting the solvent?
3. Waste disposal compliance — Are waste disposal contractors operating in compliance with applicable TSCA and RCRA requirements?
4. Indemnification — Who is responsible for EPA enforcement costs arising from WCPP non-compliance?

Immediate:

• Update compliance calendars to reflect the extended deadlines for PCE and CTC
• Confirm that existing dermal protection measures are in place and operational — these were not extended
• Brief environmental health and safety teams on the revised schedule

Before June 2027:

• Complete initial exposure monitoring for both PCE and CTC operations
• Document monitoring methodology and results

Before September 2027:

• Achieve ECEL compliance for PCE operations
• Establish regulated areas where required
• Implement respiratory protection programs for both PCE and CTC
• Complete employee training

Before December 2027:

• Finalize and document the PCE exposure control plan

This article is based on publicly available EPA rulemaking materials and Federal Register notices. It does not constitute legal advice. Facilities with specific compliance questions should consult qualified environmental counsel.