Office of Primary Responsibility Office of Professional Responsibility operate operator Orbiter/Payload Recorder Officer Performance Report Officer Performance Reports Offices of Primary Responsibility Operations Planning Review operative Optical Page Reading Optical Pattern Recognition Over Pressure Relief Office of Planning and Research Office of Prime Responsibility Offsite procurement request operating Oregon Pacifc Railroad Other People's Resources Oxygen Pressure Regulator Objective Progress Report Office of Personnel Relations Office of Population Research Office of Public Responsibility Office Performance Report Officer of Primary Responsibility Official Pattern Release Oil Production Rate Once Per Revolution oparational
Office of Primary Responsibility
Office of Professional Responsibility