Pub. Util. Code, § 878

(a) A lifeline telephone service subscriber shall be provided with one lifeline subscription, as defined by the commission, at the subscriber’s principal place of residence, and no other member of that subscriber’s family or household who maintains residence at that place is eligible for lifeline telephone service.

(b) An applicant for lifeline telephone service may report only one address in this state as the principal place of residence.

(c) Multiple lifeline telephone service subscribers may maintain the same address if they are not members of the same household.

(d) For purposes of this section, the following definitions apply:

(1) “Adult” means any person 18 years of age or older.

(2) “Economic unit” means all adult individuals contributing to and sharing in the income and expenses of a household.

(3) “Household” means any group of individuals, including the subscriber, who are living together at the same address and as one economic unit. A household may include related and unrelated persons. If an adult has no, or minimal, income and lives with someone who provides financial support to that adult, both persons shall be part of the same household. A child under 18 years of age and living with a parent or guardian shall be part of the same household as the parent or guardian.