California Code, Education Code - EDC § 17092

(a) No portable classrooms shall be made available to any school district unless the district furnishes evidence, satisfactory to the board, that the district has no available bond proceeds that could be used for the purchase of classroom facilities.

(b) Notwithstanding any other provision of law, a school district or county superintendent of schools that has received approval for a project that includes a justified number of new teaching stations pursuant to Chapter 12 (commencing with Section 17000) or Chapter 12.5 (commencing with Section 17070.15) shall be eligible for at least the same number of emergency portable classrooms as approved new teaching stations.

(c) Subdivision (a) does not apply to leases or subleases under this chapter for the purpose of providing facilities, pursuant to subdivision (c) of Section 17091, for licensed child day care programs or any recreation or enrichment activities or programs for schoolage children.