The Fifth Circuit held that the CAA does not preempt a local ordinance that allows taxicabs certified to run on compressed natural gas (CNG) to cut ahead of gasoline-powered taxis in the queue for picking up passengers at Love Field Airport in Dallas. The ordinance does not create an enforceable sta...

The U.S. Supreme Court held that Oklahoma statutes that favor in-state water appropriation permit applicants over out-of-state permit applicants do not violate the Commerce Clause and are not preempted by the Red River Water Compact—an interstate water compact that allocates water among Texas, Okl...