AGA

Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015). Includes Addendum 1 (2015), 2 (2015), 3 (2016), 4 (2016), 5 (2016), 6 (2017), 7 (2017), 8 (2017), and 9 (2018)
standard by American Gas Association, 2015

Addendum 1 to Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015)
Amendment by American Gas Association, 2015

Addendum 4 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015)
Amendment by American Gas Association, 2016

Addendum 5 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015)
Amendment by American Gas Association, 2016

Addendum 6 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015)
Amendment by American Gas Association, 01/09/2017

Addendum 7 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2015 Edition (ANSI Z380.1-2015)
Amendment by American Gas Association, 05/07/2017

Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2018 Edition (ANSI Z380.1-2018), Includes Addendum 1 (2018), Addendum 2 (2019), Addendum 3 (2019), Addendum 4 (2019) and Addendum 6 (2021)
standard by American Gas Association, 06/01/2018

Amendment 1 - Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2018 Edition (ANSI Z380.1-2018)
Amendment by American Gas Association, 10/16/2018

Amendment 2 - Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2019 Edition (ANSI Z380.1-2018)
Amendment by American Gas Association, 02/01/2019

Addendum 5 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2018 Edition (ANSI Z380.1-2018)
Amendment by American Gas Association, 01/01/2020

Addendum 6 - Guide for Gas Transmission, Distribution and Gathering Piping Systems, 2018 Edition (ANSI Z380.1-2018)
Amendment by American Gas Association, 02/23/2021