2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)
11B-219.5 Permanent and portable systems.
Permanently installed assistive-listening systems are required in areas if (1) they accommodate at least 50 persons or if they have audio-amplification systems, and (2) they have fixed seating. If portable assistive-listening systems are used for conference or meeting rooms, the system may serve more than one room. An adequate number of electrical outlets or other supplementary wiring necessary to support a portable assistive-listening system shall be provided.
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Assembly Areas With Room Occupancy Under 50 (where audible communication is integral to the use of the space) |
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|---|---|---|
|
Audio-Amplification System Provided? |
Fixed Seating Provided? |
Required: |
|
no |
n/a |
outlets or wiring |
|
yes |
no |
outlets or wiring |
|
yes |
yes |
permanent system |
|
Assembly Areas With Room Occupancy Over 50 (where audible communication is integral to the use of the space) |
|
|---|---|
|
Fixed Seating Provided? |
Required: |
|
yes |
permanent system |
|
no |
outlets or wiring |
ETA Editor's Note
The ADA requirements included at Section 11B-219 are provided for information only. The CBC scoping requirements are more inclusive. The 2010 ADA Standards Exception at Section 219.2 clarifies that, except for courtrooms, the ADA scoping for assistive listening systems is limited to assembly areas where audio amplification is utilized, either permanent or portable, since this type of equipment is necessary to transmit a signal to the receiver (see ASSISTIVE LISTENING SYSTEM definition in Chapter 2). The wording of CBC Section 11B-219.2 and its Exception makes this prerequisite less clear, and therefore the calculation of the required number of receivers may need to be negotiated with the Authority Having Jurisdiction.
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