Codes, Standards, and Inspection Requirements
Codes, Standards, and Inspection Requirements
This domain tests how codes, standards, manufacturer instructions, and inspections govern the work. You do not need to memorize every local amendment, but you must know where requirements apply and which item controls.
Core rules
- The adopted code edition and local amendments govern; manufacturer instructions govern listed assemblies and connectors.
- A permit and inspections are required for structural, electrical, plumbing, and other regulated work. Concealed work must be inspected before covering.
- Load-path continuity matters: foundations, framing, connectors, and sheathing must transfer gravity and lateral loads.
- Egress, stair geometry, guards, handrails, smoke alarms, fire separation, and energy details are common inspection points.
- Prescriptive tables are limited by span, spacing, and loading; conditions outside the tables need engineering.
Worked example
A deck plan shows a guard at a second-story edge. The inspector checks the guard height, baluster spacing, post attachment, and handrail profile against the adopted residential code. If the contractor cites an older edition, the current permit set and local amendments still control. The fix is not “caulk and paint”; it is a code-compliant connection.
Traps
Assuming a detail is approved because it was used before, ignoring manufacturer fastener schedules, and covering work before inspection are common failures. Also do not treat a standard as a code; the code adopts the standard.