The ‘Guidelines for retrofitting seatbelts to pre-ADR vehicles’ (the Guidelines) provides advice for the installation of lap (2-point) or lap sash (3-point) seatbelts to pre-Australian Design Rule (ADR) vehicles that were not fitted with seatbelts by the vehicle’s original manufacturer. The Guideline provides general advice about acceptable installation methods, component requirements, and compliance requirements for registration in accordance with the Road Transport (Vehicle Registration) Regulation 2017. The scope of vehicles covered under this Guideline includes light vehicles (Gross Vehicle Mass of 4.5 tonnes or less) with a date of manufacture that predates any ADR related to seatbelts and seatbelt anchorage points.