Idaho Code § 22-3713
If it appears from an investigation that the revenue from the assessment levied hereunder is inadequate to accomplish the purposes of this act, the commission shall file with the director of the department of agriculture a report showing the necessity of the industry, extent and probable costs of the required research, market promotion and advertising, extent of public convenience, interest and necessity, and probable revenue from the assessment desired to be levied. It shall thereupon increase the assessment to a sum not to exceed twenty-five dollars ($25.00) a ton; but no increase in such assessment shall become effective unless the same shall first be referred by the commission on a referendum mail ballot to the cherry growers of this state, and be approved by two-thirds (2/3) vote of the growers of fifty percent (50%) or more of the acreage represented in the voting.
Idaho Code § 22-3713