The Australian Government is now operating in line with Caretaker Conventions, pending the outcome of the 2025 federal election.
Verifying authorities provide legal traceability to reference standards of measurement. This supports our national measurement system.
| Title | Address | Expiry date | Physical quantities | State/territory |
|---|---|---|---|---|
| Surveyor-General of NSW DCS Spatial Services [PDF 246.33 KB] | Level 14, McKell Building, 2-24 Rawson Place Haymarket, NSW 2000 | length | NSW | |
| PLUS ES [PDF 246.05 KB] | 48-50 Holker Street Silverwater NSW 2128 | energy, frequency, power, time | NSW | |
| Department of Resources (QLD) [PDF 254.01 KB] | 1 William Street Brisbane QLD 4000 |
length | QLD | |
| CI Scientific Pty Limited [PDF 242.86 KB] | Unit 1, 9 Bearing Road, Seven Hills NSW 2147 | density, mass | NSW | |
| Geoscience Australia [PDF 262.1 KB] | Corner Jerrabomberra Avenue and Hindmarsh Drive Symonston, ACT 2609 | position | ACT | |
| Metering and Measurement - NSW Pty Ltd [PDF 246.48 KB] | 44 Chivers Road Somersby NSW 2250 | flow rate, volume | NSW | |
| Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) [PDF 431.34 KB] | 619 Lower Plenty Road Yallambie VIC 3085 |
absorbed dose rate, air kerma rate | VIC | |
| SGS Australia Pty Ltd [PDF 221.28 KB] | 10/585 Blackburn Road Notting Hill VIC 3168 | frequency, speed | VIC | |
| Landis & Gyr Pty Ltd [PDF 270.82 KB] | 50 Cyanamid Street Laverton North VIC 3026 | energy | VIC | |
| Landis & Gyr Pty. Ltd. [PDF 255.64 KB] | 50 Cyanamid Street Laverton North, VIC 3026 |
flow rate | VIC | |
| W W Wedderburn Pty Ltd [PDF 179.81 KB] | 101 Williamson Road Ingleburn NSW 2565 | mass | NSW | |
| Keysight Technologies Australia Pty Ltd [PDF 247.86 KB] | 745 Springvale Road, Mulgrave VIC 3170 | density, flow rate, frequency, length, mass, temperature, volume | VIC | |
| National Weighing & Instruments Pty. Limited [PDF 302.25 KB] | 1/88 Magowar Road, Girraween NSW 2145 | mass, volume | NSW | |
| National Weighing & Instruments Pty. Limited [PDF 302.25 KB] | 2D/919 Nudgee Road, Banyo QLD 4014 | mass, volume | QLD | |
| National Weighing & Instruments Pty. Limited [PDF 302.25 KB] | 11/5 Agosta Drive, Laverton North VIC 3026 | mass, volume | VIC | |
| National Weighing & Instruments Pty. Limited [PDF 302.25 KB] | 3A Wilford Avenue, Underdale SA 5032 | mass, volume | SA | |
| Precision Calibration Services [PDF 251.47 KB] | Unit 11, 21 – 23 Daniel Street Wetherill Park NSW 2164 | mass | NSW | |
| Vipac Engineers and Scientists Limited [PDF 231.81 KB] | 279 Normanby Road Port Melbourne VIC 3207 | flow rate, pressure, volume | VIC | |
| Mettler-Toledo Limited [PDF 250.54 KB] | Level 1, 191 Salmon Street, Port Melbourne VIC 3207 | mass | VIC | |
| Mettler-Toledo Limited [PDF 250.54 KB] | Level 7, 91 Phillip Street, Parramatta NSW 2150 | mass | NSW | |
| Mettler-Toledo Limited [PDF 250.54 KB] | Level 1, 470 Saint Pauls Terrace, Fortitude Valley QLD 4006 | mass | QLD | |
| Mettler-Toledo Limited [PDF 250.54 KB] | 29 Walsh Street, Thebarton SA 5031 | mass | SA | |
| Mettler-Toledo Limited [PDF 250.54 KB] | 91 Holder Way, Malaga WA 6090 | mass | WA | |
| Energy Queensland Limited [PDF 286.73 KB] | 524 Bilsen Road Geebung QLD 4034 | electric current, electric resistance, energy, frequency, phase angle, potential difference and electromotive force, power, temperature, time | QLD | |
| LPG Measurement Technology Pty Ltd [PDF 217.21 KB] | 85A Canterbury Road Kilsyth VIC 3137 | volume | VIC | |
| Newcastle Weighing Services Pty Ltd [PDF 263.43 KB] | 5C Murray Dwyer Circuit Mayfield West, NSW 2304 | mass | NSW | |
| Australian Pressure Laboratory Pty Ltd [PDF 262.67 KB] | Unit 9, 39-45 Susan Street Eltham VIC 3095 | mass, pressure | VIC | |
| W.W. Wedderburn Pty Ltd [PDF 261.56 KB] | Melbourne Laboratory 73 Latitude Boulevard, Thomastown VIC 3074 | mass | VIC | |
| N.G. Brown & Associates Pty Ltd [PDF 222.87 KB] | 31 Jellico Drive, Scoresby VIC 3179 | mass, volume | VIC | |
| W.W. Wedderburn Pty. Limited [PDF 267.64 KB] | 20 Resource Way Malaga WA 6090 | mass | WA | |
| W.W. Wedderburn Pty. Limited [PDF 235.96 KB] | 84 Eastern Road, Browns Plains QLD 4118 | mass | QLD | |
| Surveyor-General Victoria [PDF 247.27 KB] | Level 11, 2 Lonsdale Street Melbourne VIC 3000 | length | VIC | |
| Advanced Weighing Technology NT Pty Ltd [PDF 258.75 KB] | 4/8 Menmuir St WINNELLIE, NT 0820 |
mass | NT | |
| EDMI Gas Pty Ltd [PDF 251.31 KB] | 7 Fowler Road Dandenong South VIC 3175 | flow rate | VIC | |
| Surveyor-General Environment Planning and Sustainable Development Directorate – ACT Government [PDF 247.05 KB] | 480 Northbourne Ave, Dickson ACT 2602 | length | ACT | |
| Queensland Department of Transport and Main Roads [PDF 252.75 KB] | Floor 19, 313 Adelaide Street Brisbane QLD 4000 | length | QLD |
We generally appoint verifying authorities for three years.
Use these templates to provide details to a verifying authority:
These certificates provide proof of verification. Verifying authorities can complete these templates or use them as a basis for their own certificates.
