# 40 CFR § 117.2: Abbreviations

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-117.2

## Section

- **Citation:** 40 CFR § 117.2
- **Heading:** Abbreviations
- **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 D—WATER PROGRAMS > PART 117—DETERMINATION OF REPORTABLE QUANTITIES FOR HAZARDOUS SUBSTANCES > Subpart A—General Provisions

## Text

NPDES equals National Pollutant Discharge Elimination System. RQ equals reportable quantity.

## Nearby sections

- [40 CFR § 117.1 § 117.1 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.1.md)
- [40 CFR § 117.2 § 117.2 Abbreviations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.2.md)
- [40 CFR § 117.3 § 117.3 Determination of reportable quantities.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.3.md)
- [40 CFR § 117.11 § 117.11 General applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.11.md)
- [40 CFR § 117.12 § 117.12 Applicability to discharges from facilities with NPDES permits.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.12.md)
- [40 CFR § 117.13 § 117.13 Applicability to discharges from publicly owned treatment works and their users.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.13.md)
- [40 CFR § 117.14 § 117.14 Demonstration projects.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.14.md)
- [40 CFR § 117.21 § 117.21 Notice.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.21.md)
- [40 CFR § 117.23 § 117.23 Liabilities for removal.](https://www.frixlaw.com/law-library/statutes/ecfr-40-117.23.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-117.2. Check the current official text before relying on it. Not legal advice.