District of Columbia Idle Reduction Laws and Incentives
State Laws and Regulations
Idle Reduction Requirement
A diesel or gasoline powered motor vehicle may not be allowed to operate for more than three consecutive minutes when the vehicle is not in motion, with the following exceptions: 1) to operate private passenger vehicles; 2) to operate air conditioning equipment on a bus for 15 minutes when 12 or more passengers are on board; or 3) to operate heating equipment for five minutes when the ambient temperature is 32 degrees Fahrenheit or below. Violators will be issued a fine of $650, with the fine for subsequent infractions being double the initial amount until the maximum penalty of $5,200 is reached. (Reference District of Columbia Municipal Regulations Title 20, Chapter 9, Section 900.1)
