PO: Postal Service
Executive 80 pp. / General 40 pp.
Material on the United States Postal Service, and occasional items on government mailings and military postal service.

PO 1: Collections - Deliveries
Executive 50 pp. / General 35 pp.
Materials on collections, deliveries, quality of service, and zip codes; including inquiries and complaints from the general public.

PO 2: Commemorative Stamps
Executive 125 pp. / General 150 pp.
Material on commemorative stamps, including topic suggestions and first day covers.

PO 3: Rates - Fees - Special Services
Executive 140 pp. / General 225 pp.
Material on postal rates and subsidies, especially for second class mail, and occasional items on quality and type of service, and special requests.