Leigh Smart with the faded rear marker plate that sparked his concerns over how the rules are being enforced. Smart said he had since spoken with three other operators who had received similar notices over allegedly faded rear marker plates. The National Heavy Vehicle Regulator spokesperson said the regulator has not introduced any new enforcement approach or inspection methodology relating specifically to rear marking plates. The NHVR said faded or damaged rear marking plates are a common defect identified during roadside inspections. Since January 1, 2021, the installation of Class 2 rear marking plates has been prohibited due to their lower performance and durability compared with current compliant products.