1) USCG rank 
Chief Petty Officer (USCG/USN E-7)
Computer print out paper.
commodity pool operator (US)
Cost per order or, more precisely, marketing cost per subscription order
Certified Prosthetist-Orthotist
[Naval Acronyms and Slang] Chief Petty Officer (Navy Rank) or Command Pay Office
Chief Privacy Officer
Cost per order, the amount paid above amortization by order margin of the costs of promotion, divided by the number of orders.
Compulsory Purchase Order (of a property)
Chief Petty Officer
acronym: Core Project Office (IGBP)
Chief Pharmaceutical Officer
Collaborative Procurement Organisation ( Term used to cover Hubs and Confederations focussed on purchasing strategy at a regional level)
Crime Prevention Officer
Chief Probation Officer (now CO) Crime Prevention Officer