Security, stability and manageability of vehicle depend largely on the construction of wheels, tires, suspension and steering system. Wheel alignment is part of standard automobile maintenance that consists of adjusting the angles of the wheels so that they are set to the car maker's specification. Calibration certification is performing to check the accuracy of convergence of the vehicle testing/adjusting device on the assembly line. This paper presents the method for measurement of parameters required for calibration certification of vehicle wheel alignment line. Presented methodology can be successfully used for calibration certification of wheel alignment lines both in factories and aftermarket car maintenance. In this way, CMM measurement and certification reference chassis is performed at the measuring place, taking into account the real conditions in which this tool is stored and used. It is very important that this master model is regular, because through it the device and later set all vehicles are adjusted.