# 18 C.F.R. § 1b.1 (2026): Definitions

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_1

## Section

- **Citation:** 18 C.F.R. § 1b.1 (2026)
- **Heading:** Definitions
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 18 CFR: Conservation of Power and Water Resources / Chapter I: FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY / Part 1b: RULES RELATING TO INVESTIGATIONS / § 1b.1: § 1b.1   Definitions.

## Text

For purposes of this part—
(a)
Formal investigation
means an investigation instituted by a Commission Order of Investigation.
(b)
Preliminary Investigation
means an inquiry conducted by the Commission or its staff, other than a formal investigation.
(c) Investigating officer means the individual(s) designated by the Commission in an Order of Investigation as Officer(s) of the Commission.
(d)
Enforcement Hotline
is a forum in which to address quickly and informally any matter within the Commission's jurisdiction concerning natural gas pipelines, oil pipelines, electric utilities and hydroelectric projects.
[43 FR 27174, June 23, 1978, as amended by Order 602, 64 FR 17097, Apr. 8, 1999]

## Nearby sections

- [18 C.F.R. § 1b.1 (2026) § 1b.1   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_1.md)
- [18 C.F.R. § 1b.2 (2026) § 1b.2   Scope.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_2.md)
- [18 C.F.R. § 1b.3 (2026) § 1b.3   Scope of investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_3.md)
- [18 C.F.R. § 1b.4 (2026) § 1b.4   Types of investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_4.md)
- [18 C.F.R. § 1b.5 (2026) § 1b.5   Formal investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_5.md)
- [18 C.F.R. § 1b.6 (2026) § 1b.6   Preliminary investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_6.md)
- [18 C.F.R. § 1b.7 (2026) § 1b.7   Procedure after investigation.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_7.md)
- [18 C.F.R. § 1b.8 (2026) § 1b.8   Requests for Commission investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_8.md)
- [18 C.F.R. § 1b.9 (2026) § 1b.9   Confidentiality of investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_9.md)
- [18 C.F.R. § 1b.10 (2026) § 1b.10   By whom conducted.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_10.md)
- [18 C.F.R. § 1b.11 (2026) § 1b.11   Limitation on participation.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_11.md)
- [18 C.F.R. § 1b.12 (2026) § 1b.12   Transcripts.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_12.md)
- [18 C.F.R. § 1b.13 (2026) § 1b.13   Powers of persons conducting formal investigations.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_13.md)
- [18 C.F.R. § 1b.14 (2026) § 1b.14   Subpoenas.](https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_14.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T18_P1b_S1b_1. Check the current official text before relying on it. Not legal advice.