Gentlemen:
I have to say this:
As an AHJ (NJ) it is my responsibility to do Plan Review and Permit Approvals, and sign off on plans and the permit applications.
It is my State Licences that I execute on each and every 'job' that I sign off on Plan Review. Licences that I worked very hard to get, BTW.
The purpose of Plan Review is to basically do a 'double check' for NEC compliance. In addition, we also are obligated to enforce the EE/PE/AIA's 'spec' if and when it is above and beyond the NEC.
Yes, we are all human, and humans do commit errors, both AHJ's and PE/EE/AIA's. NJ has a law that all work in comm jobs be signed/sealed by an EE/PE/AIA, so we are not 'anti-engineer'
Plans conform to the NEC, they get approvals, plans do not conform to the NEC, they get a rejection. Courtesy phone call, then, if no reply, a formal Notice of Denial.
So, based on the above, I say NO, the Seal/Signature does not get the stamp of approval.
John
