# National Emission Standards for Hazardous Air Pollutants: National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities Technology Review
> **Rule** · — · Published 2025-02-19 · 90 FR 9844
## Document
- **Document number:** C1-2024-31223
- **Category:** air-emissions
- **Federal Register citation:** 90 FR 9844
- **CFR reference:** 40 CFR 63
- **Publication date:** 2025-02-19
- **EPA docket:** EPA-HQ-OAR-2005-0155
## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/02/19/C1-2024-31223/national-emission-standards-for-hazardous-air-pollutants-national-perchloroethylene-air-emission)
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