California Code, Penal Code - PEN § 5007.7

An inmate who has maintained an inmate trust account with twenty-five dollars ($25) or less for 30 consecutive days shall be deemed indigent.  An indigent inmate shall receive basic supplies necessary for maintaining personal hygiene.  An indigent inmate shall be provided with sufficient resources to communicate with and access the courts, including, but not limited to, stamps, writing materials, envelopes, paper, and the services of a notary for the purpose of notarizing a signature on a document, as required.