This report reviews the role of in-vehicle telematics and identifies opportunities to increase the use of telematics for regulatory purposes. The review focuses on telematics regulated by the HVNL, including the Intelligent Access Program (IAP) and the Electronic Work Diary (EWD), but also evaluates the role of regulatory telematics in passenger transport, taxis, alcohol interlocks and chain of responsibility. The review evaluates existing national strategies that relate to in-vehicle telematics, and makes 30 findings informed through targeted consultation with government and industry. The report proposes six recommendations to increase policy certainty and the uptake of regulatory telematics.