An act to amend the Natural Gas Pipeline Safety Act of 1968 to provide for the safe operation of pipelines transporting natural gas and liquefied petroleum gas, to provide standards with respect to the siting, construction, and operation of liquefied natural gas facilities, and for other purposes.

[AI summary unavailable — showing source text] Pipeline Safety Act of 1979 - Title I: Natural Gas - Natural Gas Pipeline Safety Act Amendments of 1979 - Declares the finding of Congress that the purposes of the Natural Gas Pipeline Safety Act of 1968 will be more effectively realized by amendments thereto providing the Secretary of Transportation with preconstruction design approval authority for pipeline facilities and with improved investigation and enforcement powers. Amends such Act to include liquid natural gas within the definition of "gas". Provides the Secretary with preconstruction design approval authority for pipeline facilities. Stipulates that such approval shall be contingent on compliance with applicable safety standards and other terms and conditions determined by the Secretary. Allows safety standards generally applicable to new pipeline facilities to be applied to existing facilities considered hazardous to life or property. Amends the provision authorizing waivers of compliance with standards established under this Act by allowing such waivers only by order of the Secretary. Abolishes the Technical Pipeline Safety Standards Committee. Requires certified State agencies to encourage and promote programs to prev…