# 40 CFR § 721.50: Applicability

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-721.50

## Section

- **Citation:** 40 CFR § 721.50
- **Heading:** Applicability
- **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 R—TOXIC SUBSTANCES CONTROL ACT > PART 721—SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES > Subpart B—Certain Significant New Uses

## Text

This subpart B identifies certain significant new uses of chemical substances identified in subpart E of this part. The provisions of this subpart B apply only when referenced as applying to a chemical substance identified in subpart E of this part.

## Nearby sections

- [40 CFR § 721.1 § 721.1 Scope and applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.1.md)
- [40 CFR § 721.3 § 721.3 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.3.md)
- [40 CFR § 721.11 § 721.11 Applicability determination when the specific chemical identity is confidential.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.11.md)
- [40 CFR § 721.30 § 721.30 EPA approval of alternative control measures.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.30.md)
- [40 CFR § 721.35 § 721.35 Compliance and enforcement.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.35.md)
- [40 CFR § 721.50 § 721.50 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.50.md)
- [40 CFR § 721.125 § 721.125 Recordkeeping requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.125.md)
- [40 CFR § 721.185 § 721.185 Limitation or revocation of certain notification requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.185.md)
- [40 CFR § 721.324 § 721.324 Alkoxylated acrylate polymer (generic).](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.324.md)
- [40 CFR § 721.333 § 721.333 Dimethyl alkylamine salt (generic).](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.333.md)
- [40 CFR § 721.338 § 721.338 Certain salts of an acrylate copolymer.](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.338.md)
- [40 CFR § 721.450 § 721.450 Hydrofluorochloroalkene (generic).](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.450.md)
- [40 CFR § 721.480 § 721.480 Aminoester of polyalkenylated alkyldicarboxylic acid (generic).](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.480.md)
- [40 CFR § 721.484 § 721.484 Fluorinated acrylic copolymer (generic name).](https://www.frixlaw.com/law-library/statutes/ecfr-40-721.484.md)

---

Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-721.50. Check the current official text before relying on it. Not legal advice.