FOR ARCHIVING: Registration form for 'den' --- LANGUAGE SUBTAG REGISTRATION FORM 1. Name of requester: Doug Ewell 2. E-mail address of requester: doug at ewellic.org 3. Record Requested: Type: language Subtag: den Description: Slavey Scope: macrolanguage 4. Intended meaning of the subtag: 5. Reference to published description of the language (book or article): 6. Any other relevant information: This registration tracks a change made to ISO 639 effective 2026-04-15, changing the reference name for [den] from "Slave (Athapascan)" to "Slavey". For more information on the ISO 639 change, refer to: https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2008%20April%202026%20ISO%20639%20MA%20Newsletter.pdf https://iso639-3.sil.org/request/2025-009 https://iso639-3.sil.org/code/den