Which gas lines need odorization? The Federal Pipeline Safety Regulations (§192.625) demand that combustible gases in some pipelines be odorized or contain a natural odorant. Those pipelines are distribution lines and some transmission lines.

Natural Gas Odorization Requirements

Distribution Lines

Distribution lines are local natural gas utility systems that include gas mains and service lines. They also include single lines serving a consumer which is operating at less than 20% SMYS (specified minimum yield strength) from a transmission line.  Additionally, systems transporting LPG through a trailer park would be considered a distribution line. All distribution lines need to be odorized or contain natural odorant. Continue reading