Environmental Criteria and Standards

---
identifier: "/us/fr/2023-06294"
source: "fr"
legal_status: "authoritative_unofficial"
title: "Environmental Criteria and Standards"
title_number: 0
title_name: "Federal Register"
section_number: "2023-06294"
section_name: "Environmental Criteria and Standards"
positive_law: false
currency: "2023-03-24"
last_updated: "2023-03-24"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Housing and Urban Development Department"
document_number: "2023-06294"
document_type: "rule"
publication_date: "2023-03-24"
agencies:
  - "Housing and Urban Development Department"
cfr_references:
  - "24 CFR Part 51"
fr_citation: "88 FR 17725"
fr_volume: 88
---


#  Definitions.

**CFR Correction**

This rule is being published by the Office of the Federal Register to correct an editorial or technical error that appeared in the most recent annual revision of the Code of Federal Regulations.

**24 CFR Part 51**

In Title 24 of the Code of Federal Regulations, Parts 0 to 199, revised as of April 1, 2022, in section 51.201, reinstate the definition of “Hazardous substances” to read as follows:

§ 51.201

*Hazardous substances* —means petroleum products (petrochemicals) and chemicals that can produce blast overpressure or thermal radiation levels in excess of the standards set forth in § 51.203. A specific list of hazardous substance is found in appendix I to this subpart.