What this rule does
The federal government has registered the Excise (Mass of CNG) Determination 2026, which came into force on 20 July 2026. The determination sets out the approved methods for calculating the mass of compressed natural gas (CNG) for excise purposes under the Excise Act 1901, administered by the Department of the Treasury.
What it replaces
The new determination replaces the Excise (Mass of CNG) Determination 2016 (No.2) 2016. Schedule 1 of the new instrument repeals the previous version. The old 2016 determination no longer applies from 20 July 2026.
Key actions
- Businesses that measure or report the mass of CNG for excise purposes can download the full text of the new determination at https://www.legislation.gov.au/F2026L00979 to confirm the updated calculation methods that apply from 20 July 2026.
- Internal processes or software used to calculate CNG mass for excise reporting are required to reflect the new methods, as the old 2016 determination has been repealed.
- The Department of the Treasury is the administering body for queries about which method applies to a specific CNG measurement situation - contact details are available at https://treasury.gov.au.
This is a plain-English summary for information only, not legal or compliance advice. Always check the official source or consult a qualified professional.