# NATIONAL FUEL GAS SUPPLY CORP — Integrity Assurance Notification

- **operation:** document
- **citation:** PHMSA 25-357383
- **title:** NATIONAL FUEL GAS SUPPLY CORP — Integrity Assurance Notification
- **source type:** inspection
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** 2025-11-07
- **effective on:** 2025-11-07
- **summary:** GAS TRANSMISSION in NY; REASSESSMENT INTERVAL ABOVE 30% SMYS; PHMSA status: UNDER REVIEW.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-leading-ian-25-357383-operator-13063.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-leading-ian-25-357383-operator-13063.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-leading-ian-25-357383-operator-13063
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/SRCR_and_Integrity_Assurance_Notifications.zip
**body:**

In accordance with 49 CFR §192.939(a) and § 192.939(b), National Fuel Gas Supply Corporation (“NFG”) requests that the Pipeline Hazardous Materials Safety Administration (“PHMSA”) grant a 6-month extension of the 7-calendar year reassessment interval for its Line UNY 4.9 mile HCA segment from Vicksburg to Maple & North Forest, in the towns of Amherst, Erie County, New York and Tonawanda, Erie County, New York. The extension is requested because of a failed inline inspection (“ILI”). This inspection range was previously assessed via Ultrasonic In-Line Inspection (UT-ILI) in 2018, with reassessment due by December 31, 2025. NFG discussed this request with PHMSA and NYS Department of Public Service (“DPS”) staff on October 29, 2025.
- **truncated:** false
- **body characters:** 739