Australia's National Heavy Vehicle Regulator (NHVR) extends fatigue hours for Great Western Highway detours Change Australia's National Heavy Vehicle Regulator (NHVR) exempted drivers using listed Great Western Highway detours from normal fatigue limits through June 30, 2026, allowing Standard Hours drivers an additional 2 hours per 24 hours (raising the daily cap to 14 hours) with higher 7- and 14-day caps, while Basic and Advanced accredited drivers receive additional 1.5 hours per 24 hours, 2 hours per 7 days and 4 hours per 14 days. Why it matters Drivers using the listed detours must record the NHVR exemption in the daily work diary, including the time and detour used. Solo drivers remain bound by a maximum of four continuous hours of work with at least 15-minute short breaks after four hours, and night work is limited to six occurrences in any 14-day period. bigrigs.com.au · Mar 31 More actions Like (sign in) Save (sign in) Share Facebook LinkedIn X / Twitter Copy link