The NHTSA Office of Vehicle Safety Compliance utilizes MATLAB routines for post process yaw rate and lateral acceleration data collected during compliance testing to verify that tested vehicles meet the requirements of FMVSS No.126. Critical filtering and processing requirements are specified in the standard. The MATLAB routines used by NHTSA contracted test labs can be accessed below. The main program is a Graphical User Interface written in MATLAB’s programming language and is a windows based program.