Around here, "The contractor of a building, building component or structure shall be responsible for meeting the minimum requirements of the state building code and state fire code." RSA 153:14.You build it below the standard it's you companies fault. That is clear!
What most don't get is that there is a unwritten rule that the Licensed installer performing a less than compliant installation is subject to consequences. Nobody says you are forced to do the work!
Send a Certified letter to all demanding a response " A response of Well lets wait to get red tagged on it" is not appropriate. Inspectors do not catch everything nor can they be expected to these days. It is the installers Job to perform a code compliant install regardless of Who is watching. Perform all the work unrelated to the issue until an appropriate answer is provided.
Or be on the hook.
Place in the Certified letter you will not be responsible for compliance if this issue is not resolved properly.
No "ifs, ands or buts". Contractor shall be responsible. Anyone with a license is also subject to administrative sanctions if they violate the professional standards of their respective licensing board (electrician, engineer). Inspectors may be certified for at least minimal competence but not necessarily licensed.
Failure to conform to applicable standards is typically deemed "evidence of negligence". It may also be deemed negligence for a licensed professional (architect, engineer) to not hire a consultant when a reasonable professional, under similar circumstances, would have done so. Incomplete or ambiguous plans can be a trap for the unwary architect or engineer who authorizes a non-conforming or inferior installation.
"Hello, our contractor's consulting PE has identified something that your designer's PE didn't explain on the plans. We need to talk..."