The DER or Designated Employer Representative The acronym DER stands for Designated Employer Representative A DER is the person in charge of an employer’s drug and alcohol testing program and is often also called the drug and alcohol testing program manager
Designated Engineering Representatives (DER) | Federal Aviation . . . Engineering and Flight Test designees are responsible for finding that engineering data complies with the appropriate airworthiness standards These designees are called Designated Engineering Representatives, or DERs
Distributed Energy Resources Distributed energy resources (DER) refers to a diverse category of devices and technologies that interface with the electricity system at the distribution level, either directly connected to a distribution utility’s wires or on an end-use customer’s premises, behind the utility meter
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