Radiological Assistance Program Remedial Action Plan Research Applications Program Radio Access Point Remedial Action Program right atrial pressure Radon Action Plan reclaimed asphalt pavement Registration Assessment Panel Remedial Accomplishment Plan Response Action Plan Retained Access Power Route Access Protocol Radar-Absorbing Paint Radiological Assistance Plan Ranui Action Project Rapid Application Prototyping rapid assessment procedures rapid atrial pacing Rear Area Protection receptor associated protein Recognised Air Picture Recognized Air Picture Recoverable Advance Payment recurrent abdominal pain Regimental Aid Post regional acceleratory phenomenon Regulatory Accounting Principles Reliable Acoustic Path Relocation Assistance Program