RCW 81.88.080: Pipeline mapping system—Commission specifications and evaluations.

(1) The commission shall require hazardous liquid pipeline companies, and gas pipeline companies with interstate pipelines, or gas pipelines operating over two hundred fifty pounds per square inch gauge, to provide accurate maps of these pipelines to specifications developed by the commission sufficient to meet the needs of first responders.

(2) The commission shall evaluate the sufficiency of the maps and consolidate the maps into a statewide geographic information system. The commission shall assist local governments in obtaining hazardous liquid and gas pipeline location information and maps. The maps shall be made available to the one-number locator services as provided in chapter 19.122 RCW. The mapping system shall be consistent with the United States department of transportation national pipeline mapping program.

(3) The commission shall periodically update the mapping system.