In light of government reports finding high utilization and potential improper Medicare payments associated with repetitive scheduled nonemergent ambulance transports, CMS will test a prior authorization model program for these services in New Jersey, Pennsylvania, and South Carolina. CMS defines repetitive ambulance service as medically necessary ambulance transportation that is furnished in 3 round trips or more times during a 10-day period, or at least once per week for at least 3 weeks. CMS notes that such repetitive ambulance services are often needed by beneficiaries receiving dialysis, wound care, or cancer treatment. The use of prior authorization will not create new clinical documentation requirements for suppliers; instead information that is already required to support Medicare payment will be furnished earlier in the process, prior to rendering services. The prior authorization program is scheduled to begin December 1, 2014 and last three years.