# SOUTHWEST GAS CORP — Integrity Assurance Notification

- **operation:** document
- **citation:** PHMSA 26-378082
- **title:** SOUTHWEST GAS CORP — Integrity Assurance Notification
- **source type:** inspection
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2026-07-15
- **effective on:** 2026-07-15
- **summary:** GAS TRANSMISSION in NV; CROSSOVER RMV ALTERNATIVE TECHNOLOGY; PHMSA status: RESOLVED.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-leading-ian-26-378082-operator-18536.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-leading-ian-26-378082-operator-18536.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-leading-ian-26-378082-operator-18536
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/SRCR_and_Integrity_Assurance_Notifications.zip
**body:**

Pursuant to the notification procedures outlined in §192.18, Southwest Gas Corporation (OPID: 18536) respectfully submits the attached letter and attachments for your review and approval to install a crossover valve instead of a Rupture Mitigation Valve per 49 CFR §192.634(b)(4) at our Lamb Tap project located in North Las Vegas, Nevada.
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- **body characters:** 339