English abbreviations from era to ere
- ERA (explosive reactive armour)
- ERAC (Electric Armaments Research Center)
- ERAP (Emergency Response Action Plans)
- ERAU (Embry Riddle Aeronautical University)
- ERB (Pukatja Airport (Ernabella Airport))
- ERC (Engin de Reconnaissance Canon)
- ERCC (Engine Run Crew Change)
- ERCIM (European Research Consortium for Informatics and Mathematics)
- ERCOT (Electric Reliability Council of Texas, Inc, a Regional Transmission Organization. (US))
- ERD (Berdyansk Airport)
- ERDA (Elastic Recoil Detection Analysis)
- ERDC (Engineer Research and Development Center)
- ERDEC (Edgewood Research, Development, and Engineering Center)
- ERDI (European Research and Development Institute)
- ERDL (Extended Range Data Link (smart bomb))
- ERDS (Error Recording Data Set)
- ERE (Erave Airport)