# HAR 6-77-108 Customer meters and regulators: protection from damage

- **operation:** document
- **citation:** HAR 6-77-108
- **title:** HAR 6-77-108 Customer meters and regulators: protection from damage
- **source type:** regulation
- **agency:** Hawaii Public Utilities Commission
- **status:** current
- **official:** true
- **published on:** 1994-04-15
- **effective on:** 1994-09-03
- **summary:** from vacuum or back pressure. If the customer's equipment might create either a vacuum or a back pressure, a device must be installed to protect the system. (b) Service regulator vents and relief vents. Service regulator vents and relief vents must terminate outdoors, and the outdoor terminal must: 
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/hi-har-har-6-77-108.json
- **markdown:** https://regulus.evalyn.ai/document/hi-har-har-6-77-108.md
- **app url:** https://regulus.evalyn.ai/document/hi-har-har-6-77-108
- **source url:** https://puc.hawaii.gov/wp-content/uploads/2026/04/HAR-6-77-Transp-of-Gas-03-31-2026.pdf
**body:**

from vacuum or back pressure. If the customer's equipment might create either a vacuum or a back pressure, a device must be installed to protect the system. (b) Service regulator vents and relief vents. Service regulator vents and relief vents must terminate outdoors, and the outdoor terminal must: (1) Be rain and insect resistant; (2) Be located at a place where gas from the vent can escape freely into the atmosphere and away from any opening into the building; and (3) Be protected from damage caused by submergence in areas where flooding may occur. (c) Pits and vaults. Each pit or vault that houses a customer meter or regulator at a place where vehicular traffic is anticipated, must be able to support that traffic. [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.355, October 1, 1990)
- **truncated:** false
- **body characters:** 795