Here is an overview of various national- and international-level certifications available to procurement professionals.

Universal Public Purchasing Certification Council [UPPCC]

(for public procurement professionals, i.e., state, city, county, municipalities and political subdivisions)

• Certified Public Purchasing Officer (CPPO)
• Certified Professional Public Buyer (CPPB)

National Contract Management Association [NCMA]

(geared toward federal contracting officers)

• Certified Federal Contract Manager (CFCM)
• Certified Professional Contract Manager (CPCM)
• Certified Commercial Contract Manager (CCCM)

Institute for Supply Management

(geared toward private sector in supply chain management)

• Certified Purchasing Manager (C.P.M.)
• Accredited Purchasing Practitioner (A.P.P.)
• Certified Professional in Supply Management (CPSM)

Chartered Institute of Purchasing and Supply

(United Kingdom)

• Graduate Diploma (FCIPS)
• Certificate Programs in Purchasing and Supply

Purchasing Management Assoc. of Canada

• Certified Professional Purchaser (C.P.P.)

APICS, The Association for Operations Management

• Certified in Production and Inventory Management (CPIM)
• Certified in Integrated Resource Management (CIRM)
• Certified Fellow in Production and Inventory Management (CFPIM)

Construction Specifications Institute

• Construction Document Technology (CDT)
• Certified Construction Specifier (CCS)
• Certified Construction Contract Administrator (CCCA)
• Certified Construction Product Representative (CCPR)

American Contract Compliance Association

• Certified Compliance Administrator (CCA)
• Master Compliance Administrator (MCA)

Read the main story, "Time to get certified".