Portable Object Adapter
Provisional Operating Authorization
Pilot Operated Absolute
Plan of Action
Program Office Approvals
Pacific Ocean Areas
pancreatic oncofetal antigen
Place of acceptance
Portable Object Adaptor
primary optic atrophy
Privately Owned Aircraft
IATA code for Salgado Filho Internatio…
Partial Order Alignment
Pay on Arrival
Payload ORU Accommodation
Payment On Account
Peierls-Onsager approxn.
Pennsylvania Optometric Association
Petroleum Operating Agreement
phenoxyacetic acid
Piedmont Oncology Association
plain old ACARS
Plan Of Attack
Plant operating authority
Point of Acquisition
Point of Action
Point Of Arrival
Point of Attachment
Port Outboard Aft
Portuguese Army