E&R stands for Engineering and Repair (US Navy)
E&R
E&R stands for Energy & Resources
E&R stands for Evasion and Recovery (US DoD)
E&R stands for Environmental & Regulatory (various companies)
E&R stands for Ede and Ravenscroft (UK)
E&R stands for Evidence & Reports (Canada)
E&R stands for Evangelisatie en Recreatie (Dutch: Evangelism and Recreation; church)
E&R stands for Exchange & Repair (FAA)
E&R stands for Escape and Resistance