The American Trucking Association (ATA) and three carriers have filed suit against the state of Rhode Island, claiming its tolls that target only commercial trucks are unconstitutional.

According to its website, the ATA is joined by Cumberland Farms Inc., M&M Transport Services Inc. and New England Motor Freight in claiming the truck only tolls that are a part of Rhode Island’s RhodeWorks program violate the constitution’s commerce clause.  Their complaint alleges the program discriminates against interstate trucking companies while impeding the flow of interstate commerce.

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The suit accuses the state of designing tolls specifically to target out-of-state truck drivers, causing them to shoulder a disproportionate amount of the cost and responsibility for the conditions of the roads.