The Postal Service™ Supply Chain Management (SCM) activities operate under 8 Supplying Principles. These principles represent the strategic elements that guide Postal Service buying and material management activities and are central to the financial, operational, and public policy goals outlined in the Postal Service’s strategic plans. Postal Supplying Principles can be found in the Postal Service’s Supplying Principles and Practices (SPs and Ps).
The Postal Service’s Supplier Relations Principle aims to establish and maintain a strong, competitive supplier base that reflects the diversity of the supplier community. Postal Service supply professionals look for ways to optimize the postal supplier base to match the specific characteristics of the market and the good or service being supplied, while keeping in line with the goals of the Postal Service.