Cal. Pub. Util. Code § 99163

On and after January 1, 2005, whenever a transit operator improves or replaces a ticket vending machine at a public transit station to include video instructions, the transit operator shall also equip the ticket vending machine with audio instructions that will enable visually impaired persons to follow the visual prompts. State funds made available to the operator through the State Transportation Assistance Program under Section 99312 shall be available for the purposes of this section.