# Issuance of Investigation Completion Letters
> **US Department of the Interior** · Final rule. · Published 2012-08-09 · Effective 2012-09-10 · 77 FR 47516
## Document
- **Document number:** 2012-19166
- **Category:** other
- **Sub-agency:** US Department of the Interior
- **Federal Register citation:** 77 FR 47516
- **CFR reference:** 25 CFR 571
- **Publication date:** 2012-08-09
- **Effective date:** 2012-09-10
## Abstract

This action amends our regulations to provide for the issuance of an investigation completion letter if the Agency will not recommend the commencement of an enforcement proceeding against a respondent.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/09/2012-19166/issuance-of-investigation-completion-letters)
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