SOUTHWEST GAS CORP — Integrity Assurance Notification

CROSSOVER RMV ALTERNATIVE TECHNOLOGYPursuant 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.#