Formal Agreement Reached on Brake Transmission System Interlock (BTSI) 

NHTSA announced on August 17, 2006, a formal agreement with the Alliance of Automobile Manufacturers and the Association of International Automobile Manufacturers to ensure that all vehicles sold in the U.S. with automatic transmissions will be equipped with "brake transmission system interlocks" to prevent children from moving the shift mechanisms out of park.

Click on the additional resources links to view the letter and details of the agreement.