Mandatory documents and production steps

We are having an internal debate here regarding "Work Station Signage" requirements. That is, are assembly technicians "required" to initial & date when they complete a particular manufacturing sequence step? Currently we have not required technician signoffs in the past as it is "fairly" obvious as to whether or not the prior Sequence Step was completed correctly or not. Typically there are about 20-30 sequence steps to assemble the products we sell. At the very end, all products receive a Final Calibration report which basically indicates the product manufactured satisfies performance specifications.
There are a group of individuals here that feel ISO 9001 requires workstation signage and there is a group of individuals her e that is against it. I don't see the harm in having it the signoffs, but I'm not an ISO expert and I'm not able to determine whether this is specifically required or not by the standard. Could you shed some light on this?”

Answer:
The fast answer is: ISO 9001:2015 does not require workstation signage as long as that signage is just a confirmation of work done. If that workstation signage is used in your organization as a kind of quality control then it is required.

The following material will provide you information mandatory documents:
- ISO 9001 – List of mandatory documents required by ISO 9001:2015 - https://advisera.com/9001academy/knowledgebase/list-of-mandatory-documents-required-by-iso-90012015/
- free online training ISO 9001:2015 Foundations Course – https://advisera.com/training/iso-9001-foundations-course/
- book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/