title: Etag
text: # Etag
  
  Etag can refer to:
  
  * HTTP ETag, entity tag, part of the HTTP protocol for the World Wide Web
  * etags, the ctags utility that comes with Emacs
  * NERC Tag, also known as E-Tag, a transaction on the North American bulk electricity market
  * e-TAG, an electronic tolling system used on tollways in Australia
  * European Technology Assessment Group, a network of scientific institutions
  * European Technical Approval Guidelines, drafted by the European Organisation for Technical Approvals
  