California Code, Welfare and Institutions Code - WIC § 1753.1

(a) The Director of the Youth Authority may enter into agreements with any federal agency authorizing the use of the Youth Authority's facilities and services for the confinement, care and treatment of persons otherwise not under its jurisdiction when suitable facilities and services are available. The costs of the services provided by the Youth Authority shall be borne by the agency referring the person to the Director of the Youth Authority. The Director of the Youth Authority may order the person returned to the agency referring him when suitable facilities or services are not available. Any such person referred to the Youth Authority pursuant to this section shall be subject to its rules and regulations.

(b) As used in this section, “person” means any person under the age of 26 years who is under the jurisdiction of a Federal Correctional Agency pursuant to federal law.