In several countries insurance companies offer direct repair programs (DRP) so that their customers have easy access to a recommended car body repair shop. Some also offer one-stop shopping where a damaged car can get dropped off and an adjuster handles the claim, the car is fixed and often a replacement rental car is provided. When repairing the vehicle the car body repair shop is obliged to follow the instructions regarding the choice of original equipment manufacturer (OEM), original equipment supplier parts (OES), Matching Quality spare parts (MQ) and generic replacement parts. Both DRPs and non OEM parts help to keep costs down and keep insurance prices competitive. AIRC (International Car body repair Association) General Secretary Karel Bukholczer made clear that DRP's have had big impact on car body repair shops.
Providers can also offer sub-divisions of auto repair insurance. There is standard repair insurance which covers the wear and tear of vehicles, and naturally occurring breakdowns. Some companies will only offer mechanical breakdown insurance, which only covers repairs necessary when breakable parts need to be fixed or replaced. These parts include transmissions, oil pumps, pistons, timing gears, flywheels, valves, axles and joints. 
A compulsory car insurance scheme was first introduced in the United Kingdom with the Road Traffic Act 1930. This ensured that all vehicle owners and drivers had to be insured for their liability for injury or death to third parties whilst their vehicle was being used on a public road. Germany enacted similar legislation in 1939 called the "Act on the Implementation of Compulsory Insurance for Motor Vehicle Owners."
In case there are any changes that need to be made in the policy such as address change or any particular changes regarding the automobile or its usage, it could be done by an endorsement by the insurance provider. You need to submit a letter to your insurance provider along with the proof of the changes so that you could obtain the endorsement. There are few endorsements that might charge an extra premium from you.