Whenever, subsequent to the date on which a conditional apportionment becomes final, territory is withdrawn from a state-aided district and no portion of the apportionment was expended for school property acquired by the acquiring district:
If the percentage of assessed valuation in acquired territory is, in the aggregate, less than 10 percent, the assessed valuation in all the acquired territory shall be excluded, until the next withdrawal of territory from the state-aided district to the acquiring district, in determining the assessed valuation of the state-aided district for the purposes of the computations under Sections 15729 to 15733, inclusive.
If the percentage of assessed valuation in acquired territory is, in the aggregate, a percentage equal to or greater than 10 percent, the Controller shall, by deducting such percentage from 100 percent, obtain the "complement percentage." Until the next withdrawal of territory from the state-aided district to the acquiring district, the assessed valuation of the state-aided district for purposes of the computations under Sections 15729 to 15733, inclusive, shall be determined by dividing the current assessed valuation of the state-aided district, as territorially constituted immediately subsequent to the last withdrawal, by the complement percentage.
Whenever, pursuant to this section, the assessed valuation of the state-aided district is adjusted for repayment computation purposes by use of the complement percentage, liability for the annual repayment computed shall be apportioned between the state-aided district and the acquiring district by multiplying such annual repayment by the complement percentage, the product representing the liability of the state-aided district, and the remainder of the computed repayment representing the liability of the acquiring district.
Notwithstanding the foregoing, the liability of the state-aided district shall not exceed the product of any "complement percentage" (as it may from time to time exist) times the balance due on the final apportionment at the time the complement percentage is established; and the liability of the acquiring district (while a complement percentage remains unchanged) shall not exceed the remainder of the balance of the aforesaid final apportionment at the time the complement percentage is established. The maximum liability on the part of either the state-aided or acquiring districts established as above (and until the time that the liability be altered by altering the "complement percentage") shall be hereinafter referred to in this section with respect to each district as "the maximum."
If any subsection, clause, sentence or phrase of this section is for any reason held to be unconstitutional that decision shall not affect the validity of the remaining portions of this section. The Legislature hereby declares that it would have adopted this section and each subsection, sentence, clause or phrase thereof irrespective of the fact that any one or more subsections, clauses, sentences, or phrases be declared unconstitutional.
Ca. Educ. Code § 15792