N.Y. Comp. Codes R. & Regs. tit. 16, § 255.801 – Reports of accidents.

(a) Each operator shall report all accidents where gas facilities may be involved, which cause injury or death to any person or damage to property, or could cause concern because of coverage by news media.
(b) All incidents involving carbon monoxide (CO) that result in an investigation by the company shall also be reported.
(c) All such accidents and CO incidents shall be immediately reported by telephone through the gas emergency notification system.
(d) Within 30 days a written account shall be submitted for each incident that involved gas facilities and:
1. (1) a death, or personal injury necessitating inpatient hospitalization; or
2. (2) estimated property damage, including cost of gas lost, of the operator, or others, or both, of $50,000 or more.
(e) This report shall set forth a chronological sequence of events including a detailed description of the:
1. (1) accident (incident);
2. (2) response, action and investigation by the operator; and
3. (3) results and findings of the investigations.
(f) Such written account for a CO incident shall only be required when it resulted in either an injury or fatality.
(g) Where applicable, a copy of the report sent to the Office of Pipeline Safety, United States Department of Transportation shall be submitted by the operator.