2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)
11B-402 Accessible routes
11B-402.2 Components.
Accessible routes shall consist of one or more of the following components: walking surfaces with a running slope not steeper than 1:20, doorways, ramps, curb ramps excluding the flared sides, elevators, and platform lifts. All components of an accessible route shall comply with the applicable requirements of Division 4.
Advisory 11B-402.2 Components. Walking surfaces must have running slopes not steeper than 1:20, see Section 11B-403.3. Other components of accessible routes, such as ramps (Section 11B-405) and curb ramps (Section 11B-406), are permitted to be more steeply sloped. ◼
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