TCA administers the use of On-Board Mass (OBM) Systems linked to the IAP (known as the Interim OBM Solution) allowing road managers to grant access to routes that may have previously been unavailable for some heavy vehicle types, due to identified infrastructure risks.

The OBM Solution has also been an important input into the development of the OBM System Functional and Technical Specification.

TCA and participating jurisdictions continue to administer the Interim OBM Solution unchanged with the Interim OBM Solution not requiring the use of type-approved OBM Systems until transition occurs to the full OBM Program (development on this program has commenced and is expected to be completed in 2018).

Upon completion of the development of the full OBM Program, TCA and participating jurisdictions will provide for fair and reasonable transition arrangements before the Interim OBM Solution is concluded. 

Information for transport operators

Stakeholders interested in participating in the Interim OBM Solution are advised to speak with participating road managers:

Roads and Maritime Services - NSW

Tel: 1300 364 847

Email: [email protected]


Department of Transport and Main Roads - QLD

Tel: 1300 753 427

Email: [email protected]