Heavy Vehicle Registration Assessment Scheme (HVRAS) accredited persons inspect heavy vehicles over 4.5 tonne gross vehicle mass and trailers over 0.75 tonne aggregate trailer mass to ensure they comply with dimensional limitations, approved load sharing axle systems guidelines, safe tyre limits and vehicle identifiers prior to registration in Queensland. The purpose of HVRAS is to provide a service to the public on behalf of the Department of Transport and Main Roads (TMR).