What does PRJ stand for?

Aero Servicios Pro-Bajio, SA de CV - Mexico - FAA designator (FAAC)

American Junior College of Puerto Rico, Bayamon, PR - OCLC symbol (OCLC)

Capri - Italy - Airport symbol (AD)

Payroll Journal - Accounting

Port Royal - Jamaica - Seismograph station code, US Geological Survey (SEIS)

Projected RADAR Jammer (SEWL)