Compulsory Third Party (CTP) insurance is linked to your vehicle registration and covers eligible injuries caused by the use of a registered vehicle, including injuries to passengers, pedestrians and, in some schemes, the at-fault driver. It can help with reasonable medical treatment, rehabilitation and income support, depending on your state or territory’s rules and individual circumstances. CTP generally does not cover damage to cars or other property, which is why drivers may also choose third-party property or comprehensive insurance. After a crash, report it as required, seek medical attention and contact the relevant CTP insurer or state authority promptly; claim decisions are made under the applicable local scheme.