Gas service lines are frequently severed or damaged by excavation causing loss of life, injury and property damage by fire and explosion. OPS seeks public participation in determining whether operators should be required to install excess flow valves on service lines to improve safety and reduce the frequency of incidents. Excess flow valves are designed to shut off the flow of gas in the service line by closing automatically when a line is broken. A questionnaire is included in this notice to gather information based on gas distribution company knowledge and experience.