USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Excess Flow ValveCustomer Notification

Notice of proposed rulemaking.

This notice proposes to require operators of natural gas distribution systems to notify in writing their customers of the availability of excess flow valves (EFVs) meeting DOT-prescribed performance standards, the safety benefits of these valves, and the costs of installation. If a customer requests installation, the notice proposes that an operator will be required to install the EFV if the customer pays all costs of installation. EFVs restrict the flow of gas by closing automatically when a service line is severed, thus mitigating the consequences of service line failures. This proposed regulation would enhance public awareness of the safety benefits that can be derived from installation of EFVs.

View PDF