The 2015 Guide for Gas Transmission and Distribution and Gathering Piping System replaces the 2012 edition. The updated guide contains U.S. DOT Pipeline Safety Code Title 49-Part 191 and Part 192, plus guide material prepared by the Gas Piping Technology Committee Accredited by the American National Standards Institute (ANSI). Future addenda will be available for free downloading from the GPTC webpage at www.aga.org/gptc. Paper copies are available for a nominal $25 fee.
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