Long range plans have been developed and updated for the Washington region since the mid-1960s. In 1993, new U.S. Department of Transportation regulations for metropolitan planning required that the plan be financially constrained. The CLRP is updated every three years. Projects have not been assigned priority, other than general timeframes. Projects and studies in the regional TIP and Virginia s Six-year Plan have committed funding.
Some roadways have multiple project entries in the Plan.