---
kind: "section"
citation: "18 C.F.R. § 1b.4"
title: "18"
number: "1b.4"
heading: "Types of investigations."
url: "https://uscodex.org/cfr/18/1b.4"
---

# §1b.4. Types of investigations.


Investigations may be formal or preliminary, and public or private.


## Notes

### Authority

Authority: 15 U.S.C. 717-717z, 3301-3432; 16 U.S.C. 792-828c, 2601-2645; 42 U.S.C. 7101-7352; 49 U.S.C. 60502; 49 App. U.S.C. 1-85 (1988); E.O. 12009, 3 CFR 1978 Comp., p. 142.

### Source

Source: 43 FR 27174, June 23, 1978, unless otherwise noted.