Gas distribution through mains (on own account)

**Includes:** - own-account distribution of gaseous fuels through mains - maintenance of gas meters

**Excludes:** - installation services of gas meters, cf. 54611 - transportation services of gases by pipelines, cf. 65131 - gas distribution services through mains (on a fee or contract basis), cf. 86320 - reading of gas meters, cf. 85999