Two cycles behind is nothing, I've seen towns still on the 2009 IBC while the rest of the state was on 2018. That state fire marshal site trick works but some smaller jurisdictions don't update it, so if you can't find the code year listed, just call.

Spent 5 years being the busywork guy myself.

Used to roll my eyes at guys who swore by their old chalk lines, figured they were just stuck in their ways. Then my green beam did the same thing on a bright afternoon pour and I ate my words. Now I keep the chalk line in the truck no matter what.