Cal. Pub. Util. Code § 2881
(d)
(1) The commission shall also design and implement a program to provide access to a speech-generating device to any subscriber who is certified as having a speech disability at no charge additional to the basic exchange rate. The certification shall be provided by a licensed physician, licensed speech-language pathologist, nurse practitioner, or qualified state or federal agency. The commission shall provide to a certified subscriber access to a speech-generating device that is all of the following:
(e) All of the following apply to any device or equipment described in this section that is classified as durable medical equipment under guidelines established by the United States Department of Health and Human Services:
(g)