Northern Territory Consolidated Regulations Northern Territory Consolidated RegulationsA natural gas system installed in a motor vehicle, and the vehicle, must comply with Australian Standard AS 2739 or Australian/New Zealand Standard AS/NZS 2739 that is current at the time the system is installed in the vehicle.
Examples of natural gasses for rule 154E
1 Compressed Natural Gas (CNG).
2 Liquid Natural Gas (LNG).