Tesla believes that safety will not be unduly compromised if the exemption is granted. In support of this assertion, Tesla cites its inclusion of a traction control system (TCS) on its vehicles. Tesla's TCS is comprised of software, wheel speed sensors, and the drive system electronic control unit (ECU). Tesla states that its TCS has many elements of an ESC system required by FMVSS No. 126. Tesla claims that the TCS is able to detect slip in the drive wheels through the vehicle's ECU and that the vehicle will limit drive power until wheel spin is controlled. However, Tesla notes that the TCS does not have the capability to independently monitor or adjust steering inputs to prevent oversteer or understeer, nor is it capable of applying brakes independent of driver input, both of which are required by FMVSS No. 126.