Section 11-201 - Definitions(a) In this subtitle the following words have the meanings indicated.(b)(1) "Hazardous liquid" means any: (i) petroleum or petroleum product;(iii) carbon dioxide; and(iv) any substance or material that: 1. is in a liquid state when transported by a pipeline facility; and2. may pose an unreasonable risk to life or property when transported by a pipeline facility, as determined by the United States Secretary of Transportation.(2) "Hazardous liquid" does not include liquefied natural gas.(c) "Interstate pipeline" means a pipeline, or part of a pipeline, regulated under 49 U.S.C. Chapter 601 that is used in the transportation of hazardous liquids or carbon dioxide in interstate or foreign commerce.(d) "Intrastate pipeline" means a pipeline, or part of a pipeline, regulated under 49 U.S.C. Chapter 601 that:(1) is used in the transportation of hazardous liquids or carbon dioxide; and(2) is not an interstate pipeline.(e) "Pipeline facility" means new and existing pipe, rights-of-way, and any equipment, facility, or building used in the transportation of hazardous liquids or carbon dioxide.(f) "Pipeline operator" means a person who owns or operates a pipeline facility.