An untraced drivers agreement is the scheme under which victims of road traffic accidents caused by unidentified or untraced motorists can obtain compensation when no insurer can be pursued. In England and Wales, Scotland and Northern Ireland, this is governed by the Untraced Drivers Agreement between the Motor Insurers’ Bureau (MIB) and the Secretary of State (or relevant department), rather than by primary legislation, although it operates alongside the Road Traffic Act 1988 and compulsory motor insurance law. Under the agreement, the MIB stands in place of the missing driver/insurer for personal injury and, in limited circumstances, property damage claims, subject to strict time limits, evidential requirements and exclusions (for example, fraud or certain hit-and-run scenarios). Proceedings are usually determined by arbitration rather than court litigation. In Ireland, a similar function is performed under the Motor Insurers’ Bureau of Ireland (MIBI) Agreements, which provide compensation where the at‑fault driver is unidentified, again operating contractually alongside compulsory insurance legislation. Usage of the term “untraced drivers agreement” is broadly consistent across the UK and Ireland, denoting these contractual indemnity schemes for hit‑and‑run or untraced driver claims.