40 CFR § 1604.4 - Information required in an accidental release report.

---
identifier: "/us/cfr/t40/s1604.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1604.4 - Information required in an accidental release report."
title_number: 40
title_name: "Protection of Environment"
section_number: "1604.4"
section_name: "Information required in an accidental release report."
chapter_name: "CHEMICAL SAFETY AND HAZARD INVESTIGATION BOARD"
part_number: "1604"
part_name: "REPORTING OF ACCIDENTAL RELEASES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7412(r)(6)(C)(iii); 42 U.S.C. 7412(r)(6)(N)."
regulatory_source: "85 FR 10094, Feb. 21, 2020, unless otherwise noted."
cfr_part: "1604"
---


# 1604.4 Information required in an accidental release report.

The report required under § 1604.3(c) must include the following information regarding an accidental release as applicable:

(a) The name of, and contact information for, the owner/operator;

(b) The name of, and contact information for, the person making the report;

(c) The location information and facility identifier;

(d) The approximate time of the accidental release;

(e) A brief description of the accidental release;

(f) An indication whether one or more of the following has occurred:

(1) Fire;

(2) Explosion;

(3) Death;

(4) Serious injury; or

(5) Property damage;

(g) The name of the material(s) involved in the accidental release, the Chemical Abstract Service (CAS) number(s), or other appropriate identifiers;

(h) If known, the amount of the release;

(i) If known, the number of fatalities;

(j) If known, the number of serious injuries;

(k) Estimated property damage at or outside the stationary source; and

(l) Whether the accidental release has resulted in an evacuation order impacting members of the general public and others, and, if known:

(1) The number of persons evacuated;

(2) Approximate radius of the evacuation zone; and

(3) The type of person subject to the evacuation order (*i.e.,* employees, members of the general public, or both).