Accessibility
Domain focus
Accessibility tests the scoping provisions of IBC Chapter 11 and the technical criteria of ICC A117.1. The exam asks what must be accessible, not just how to build a ramp. Expect questions on accessible routes, entrances, parking, toilet rooms, dwelling units, and signs.
Core rules
- §1101 scopes accessibility; §1104 requires at least one accessible route connecting accessible elements and spaces.
- §1105 requires at least one accessible entrance, with exceptions for certain occupancies.
- §1106 sets accessible parking counts and van-accessible spaces.
- §1107 covers accessible dwelling units and sleeping units in R-1, R-2, and I occupancies.
- §1109 covers accessible transient lodging; §1110 covers storage and signage.
- Technical criteria such as door clear width, reach ranges, and turning space are in ICC A117.1, not Chapter 11 itself.
Worked example
A 40-unit R-2 apartment building is proposed. Under §1107, the required number of accessible units is based on the total number of dwelling units and the type of accessibility provided. The designer proposes only one accessible unit and no accessible route to the mailroom. The building official should require the correct scoping count and an accessible route under §1104. The presence of an accessible unit does not excuse an inaccessible common area.
Traps
Do not apply the ADA Standards instead of the adopted IBC scoping. Do not assume every toilet room must be accessible. Do not forget path-of-travel upgrades in alterations. Do not measure door clear width at the face of the door rather than at the narrowest point. Do not omit accessible means of egress where required.