The National Heavy Vehicle Regulator (NHVR) has updated South Australia’s grain transport mass exemption notice to provide greater clarity for operators ahead of the 2026 harvest season, while maintaining the access arrangements relied on by industry. Subject to the commencement of the amended Heavy Vehicle National Law (HVNL) on August 1, the South Australia Class 3 Grain Transport Mass Exemption Notice 2026 (No. 1) will replace the current South Australia Farm Gate Grain Transport Mass Exemption Notice 2025 (No. The notice maintains existing access arrangements for eligible vehicle combinations as specified in the notice and relevant NHVR network requirements. The regulator said the notice does not remove operators’ obligations under the HVNL, including CoR, load restraint, or mass and dimension requirements.