JKC has created JKC-RTs which indicate a standard time for each individual repair work.
There are four types of JKC-RTs - “Removal & replacement RT”, “External panel RT”, “Internal frame RT” and “Paintwork RT”.
JKC- RTs cover most domestic passenger vehicles including newly introduced models, and some imported passenger vehicles with high sales volume.
JKC publishes "Structural Investigation Books" for vehicles covered by JKC-RTs. Each book contains an explanation on how to apply JKC-RTs by providing the scope of repair work and illustrations of the vehicle.
In 1976, JKC released a standard operational timetable for repairing damaged vehicles for the first time in Japan.
In those days, the number of car accidents in Japan was increasing sharply due to its rapid motorization, and the insurance market required a rational method of calculating repair costs, which led JKC to create the Standard Repair Time.
In the beginning, it took many hours to create the Standard Repair Time due to repeated measurements of the detailed processes of actual repair work. In 1985, JKC adopted the “Elementary Time Data Method” utilizing its large stock of compiled data to shorten the time to produce the Standard Repair Time. In the “Elementary Time Data Method”, a statistically computed time is assigned to each component unit of the repair process.
Revision to the Elementary Time Data is made when there are changes to the vehicle’s body structure, materials used and technology.
JKC holds annual meetings with experts in order to maintain the objectivity and the transparency of JKC-RTs, such as when JKC creates new Elementary Time Data and to validate its results.