standing charge "standing charge" means a fixed charge approved by the Commission for the provision of the supply of gas and includes the cost to maintain the system. [Am. Act 1126 - Prior text read - ""standing charge" means a fixed charge approved by the Director General for the provision of the supply of gas and includes the cost to maintain the system."] ACT 501 - GAS SUPPLY ACT 1993 13. Power to fix tariffs.