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

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