# 40 CFR § 63.1300: Standards for molded flexible polyurethane foam production

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-63.1300

## Section

- **Citation:** 40 CFR § 63.1300
- **Heading:** Standards for molded flexible polyurethane foam production
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 40—Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS > PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES > Subpart III—National Emission Standards for Hazardous Air Pollutants for Flexible Polyurethane Foam Production

## Text

Each owner or operator of a new or existing molded affected source shall comply with the provisions in paragraphs (a) and (b) of this section.
(a) A HAP or HAP-based material shall not be used as an equipment cleaner to flush the mixhead, nor shall it be used elsewhere as an equipment cleaner in a molded flexible polyurethane foam process, with the following exception. Diisocyanates may be used to flush the mixhead and associated piping during periods of startup or maintenance, provided that the diisocyanate compounds are contained in a closed-loop system and are re-used in production.
(b) A HAP-based mold release agent shall not be used in a molded flexible polyurethane foam source process.

## Nearby sections

- [40 CFR § 63.5 § 63.5 Preconstruction review and notification requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.5.md)
- [40 CFR § 63.13 § 63.13 Addresses of State air pollution control agencies and EPA Regional Offices.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.13.md)
- [40 CFR § 63.14 § 63.14 Incorporations by reference.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.14.md)
- [40 CFR § 63.16 § 63.16 Performance Track Provisions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.16.md)
- [40 CFR § 63.41 § 63.41 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.41.md)
- [40 CFR § 63.60 § 63.60 Deletion of caprolactam from the list of hazardous air pollutants.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.60.md)
- [40 CFR § 63.63 § 63.63 Deletion of ethylene glycol monobutyl ether from the list of hazardous air pollutants.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.63.md)
- [40 CFR § 63.72 § 63.72 General provisions for compliance extensions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.72.md)
- [40 CFR § 63.77 § 63.77 Application procedures.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.77.md)
- [40 CFR § 63.90 § 63.90 Program overview.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.90.md)
- [40 CFR § 63.92 § 63.92 Approval of State requirements that adjust a section 112 rule.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.92.md)
- [40 CFR § 63.97 § 63.97 Approval of a State program that substitutes for section 112 requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.97.md)
- [40 CFR § 63.102 § 63.102 General standards.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.102.md)
- [40 CFR § 63.104 § 63.104 Heat exchange system requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-63.104.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-63.1300. Check the current official text before relying on it. Not legal advice.