I can read the building code and pull permits without breaking a sweat most days. Then a project lands in a county with its own strange rules and I'm suddenly unsure of everything. Last month an inspector flagged something I'd never even heard of, and I felt the ground go soft under me in front of the whole team.
More people experience this than they realize.
You know the code well, but the odd local rules still catch you off guard.
If this sounds familiar, the Library can help you find the bigger picture.