Forms codification

Answer
Your QMS shall define authorities and responsibilities for several roles and functions.
Someone shall have the authority to approve the need for forms and their codification. There are several possible alternatives for codification. For example, some organizations just use a serial number, others use a serial number and a process or department reference.

The following material will provide you information about document control:
- Article – New approach to document and record control in ISO 9001:2015 - https://advisera.com/9001academy/blog/2015/06/30/new-approach-to-document-and-record-control-in-iso-90012015/
- How to set up document approval/withdrawal within your QMS based on ISO 9001:2015 - https://advisera.com/9001academy/blog/2016/04/12/how-to-set-up-document-approvalwithdrawal-within-your-qms-based-on-iso-90012015/
- Free course – ISO 9001:2015 Internal Auditor Course - https://advisera.com/training/iso-14001-internal-auditor-course/ rse/
- Book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/