Preferred provider organization
In health insurance in the United States, a preferred provider organization (PPO), sometimes referred to as a participating provider organization or preferred provider option, is a managed care organization of medical doctors, hospitals, and other health care providers who have agreed with an insurer or a third-party administrator to provide health care at reduced rates to the insurer's or administrator's clients.
Postal orders of the United Kingdom
Some companies have issued postal orders with the permission of the Royal Mail as part of their promotions. Such companies include Reader's Digest and Cinzano. These postal orders are classified in a sub-group of their own. They are called Promotional Postal Orders (or PPO for short). They were all issued throughout Great Britain, with one notable exception, the Fife Council PPO's, only issued in Fife, Scotland, which were used to pay for shopping at the stores that were part of the scheme. The Fife Council PPO's were introduced in 1996 and were discontinued on 31 March, 2001.