Volkswagen has submitted a plan to California regulators to recall the 482,000 vehicles sold with 2.0L engines and emissions defeat devices that has not been made public.

The California Air Resources Board confirmed Sept. 20 that it received the plan, and will now spend up to 20 days reviewing its details. The U.S. Environmental Protection Agency is also expected to work with Volkswagen on the national recall.

As part of the plan, Volkswagen was required to include a projected timeline of the full recall process for the affected vehicles, how the automaker plans to communicate with owners, and a mechanism for following up on the process. The plan must include the projected time to fix each vehicle.

Following the repairs, Volkswagen must register the fix with the California Department of Motor Vehicles and affix a sticker to the vehicle that the problem has been corrected.

Volkswagen's North American chief executive apologized for the diesel cheat on Nov. 18 at the Los Angeles Auto Show. Michael Horn said the company will announce its fix-it plan soon. The company has offered a goodwill package that includes $1,000 in gift cards and 24-hour roadside assistance at no charge for three years.