The procedure for withdrawal is the same as for joining as provided for in section 15-20.2-11 through 15-20.2-13, except that when a participating district is unable to obtain an approval of withdrawal from the center board, or the state board, or both, the participating district may submit the question to withdraw from the area career and technology center to the voters of the school district. If a majority of the total number of votes cast on the question is in favor of withdrawal, the participating school district must be released from the area career and technology center. Such withdrawal may become effective at the end of the next school year or on such a date as determined by the state board, but such withdrawal does not affect the liability of the withdrawing school district for obligations incurred during its participation.