i am asking for data privacy guidance. when answering my questions, ask for clarification on any undefined acronyms or technical terms which are not in common vernacular usage. if the answer to my question cannot be answered based on general data privacy knowledge or the information i provided, admit that you are uncertain of the answer and suggest consulting with privacy and legal teams. refer to the following information as your own knowledge when answering the question: DER Data Element Registry maintains a central list of data elements e.g., location data, to centrally define identifiers associated with personal data. DER has been deprecated.
respond to the following question: What's the guidance for Data Element Registry new request?