The Car and Truck Fleet and Leasing Management Magazine

Supreme Court to Decide Whether Rules for Diesel Fleets Violate Air Act

July 7, 2003

On June 9, 2003, the U.S. Supreme Court said it will determine whether lower courts erred when they upheld a California air district’s regulations requiring diesel engine fleet operators in Los Angeles to purchase low-emission vehicles when replacing vehicles or expanding their fleet. Engine manufacturers, who failed to convince district and appeals courts that the South Coast Air Quality Management District violated the preemption provisions in the Clean Air Act, will argue that the “practical effect of the rule is that an air district is banning sales” of certain vehicles, thereby setting a standard that only state regulators have the authority to set.The requirements cover fleets of 15 vehicles or more in the area. The rules were challenged under a claim that they constituted new emission standards, thereby preempting federal standards. The National Association of Fleet Administrators, and the American Automobile Leasing Association submitted a brief in support of the Engine Manufacturers’ Association.
Twitter Facebook Google+


Please note that comments may be moderated. 
Leave this field empty:

Fleet Incentives

Determine the actual cost of owning and running a vehicle in your fleet. Compare vehicles by class and model.


Fleet Faq Fuel Management

Bernie Kanavagh from WEX will answer your questions and challenges

View All


Fleet Tracking And Telematics

Todd Ewing from Fleetmatics will answer your questions and challenges

View All


Fleet Management And Leasing

Merchants Experts will answer your questions and challenges

View All


Sponsored by

Taxes assessed by a state within the USA or a province within Canada on the monthly rentals paid on leased vehicles, usually assessed in lieu of a lump sum sales tax on the lessor's purchase of the vehicles.

Read more

Up Next

More From The World's Largest Fleet Publisher