What requirements apply under the program for equipment-manufacturer flexibility?

What special provisions apply to equipment imported under the equipment-manufacturer flexibility program?

What are the incentives for equipment manufacturers to use cleaner engines?

What are the economic hardship provisions for equipment manufacturers?

What are the hardship provisions for engine manufacturers?

What special provisions apply to engines used for transportation refrigeration units?

[Reserved]

What compliance provisions apply?

What provisions apply to engines certified under the motor-vehicle program?

What provisions apply to vehicles certified under the motor-vehicle program?

What special provisions apply to engines using noncommercial fuels?

What are the provisions for exempting engines used solely for competition?

What special provisions apply to engines sold in Guam, American Samoa, or the Commonwealth of the Northern Mariana Islands?

Special provisions for use of engines in emergency situations

Approval of an emergency equipment field modification (EEFM)

Emission standards and certification requirements for auxiliary power units for highway tractors.§1039.699 Emission standards and certification requirements for auxiliary power units for highway tractors