People credited with this unit standard are able to, for a standard gas pressure control and metering station: demonstrate knowledge of documentation, company procedures, hazards and equipment for maintenance on a standard gas pressure control and metering station; prepare to maintain a standard gas pressure control and metering station; perform maintenance on a standard gas pressure control and metering station and ancillary equipment; recommission, purge and test a standard gas pressure control and metering station; and complete reporting and documentation.