FOR ARCHIVING: Registration form for 'dyl' (extlang)

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: extlang
Subtag: dyl
Description: Bhutanese Sign Language
Preferred-Value: dyl
Prefix: sgn

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 2026-01-15,
adding the code element [dyl] for Bhutanese Sign Language. Both a
primary language subtag and an extended language subtag were added for
this code element.

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2007%20January%202026%20ISO%20639%20MA%20Newsletter.pdf
https://iso639-3.sil.org/request/2025-004
https://iso639-3.sil.org/code/dyl