Different Types of Pipelines
Pipelines are divided up into different categories depending on what they carry, and where they go. Understanding these categories is important because they determine how pipelines are constructed and regulated.

Hazardous Liquid Pipelines carry fuels like gasoline, diesel, jet fuel, etc.

Gas Pipelines carry natural gas and propane.

Transmission Pipelines are the larger lines that move gas and liquids around the country

Distribution Pipelines are the smaller lines that move mainly gas within communities and to our individual homes and businesses.

Interstate Pipelines are lines that cross state or national boundaries

Intrastate Pipelines are lines that do not cross state boundaries.

Pipeline Basics
If you are interested in learning more about the pipeline system in Kentucky, and how pipelines are constructed and operated click here.

What Pipelines Are Near You?
Washington State has about 43,000 miles of pipeline. To see what pipelines are near you, and who operates them, click here to go to the Office of Pipeline Safety's search page

Who Regulates Pipelines in Washington?
Pipeline regulation is somewhat complicated, and depends on the type of pipeline (interstate or intrastate), and different types of regulation (safety, siting, spills, etc.). Click here for a description of what agencies oversee different parts of the pipeline regulation puzzle.

Call Before You Dig!!
Because of the danger of hitting a pipeline or other utility, it is the law in Washington that anyone digging more than 12 inches deep needs to call the Utility Locator service (1-800-999-9999) to have all utilities accurately located and marked. This is a free service, which is quick and easy to use. To learn more click here.

What to do in an Emergency
The chances of a pipeline leak or explosion in your area are relatively small, but the consequences can be huge. Knowing what to do, and what not to do could save your life. Click here to be ready.