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Audible Information Devices

Last edit date: 7/7/2026

General:

This Authorized Material List for Audible Information Devices is being established. Products will be added as manufacturers and suppliers are authorized in accordance with the Authorization Criteria. Products on this list are evaluated and found acceptable for use on California Department of Transportation (Caltrans) projects, provided the products are used in accordance with the manufacturer’s instructions, and are subject to additional Job Control testing during construction or installation.

Manufacturer Product Name Expiration Date

Notes:

  1. The information contained herein, shall not be used for advertising purposes, nor is it an endorsement by Caltrans.
  2. Instructions on how material is placed on the Authorized Material List can be found in the Authorization Criteria for Audible Information Devices.

Caltrans contact: Brandon Azevedo, brandon.azevedo@dot.ca.gov