(1) Whenever any taxing district is required by law to certify to any county treasurer, county auditor, county assessor, county commissioners or to any other county officer, any property tax levy, upon property located within said district, such certification shall, notwithstanding any other provision of the law applicable to any such district, be made at the time and in the manner hereinafter provided.
(2) The county auditor shall inform each of the taxing districts within his county of the taxable value of that district as soon as such value is known to the auditor, whether the value comes from the appraisal and assessment of real and personal property, or from allocation of the taxable value of operating property, or from other sources.
(3) Using the taxable value of the district, the council, trustees, board or other governing body of any taxing district shall certify the total amount required from a property tax upon property within the district to raise the amount of money fixed by their budget as previously prepared or approved. The amount of money so determined shall be certified in dollars to the appropriate county commissioners. Any taxing unit, except regional airport authorities, located in more than one (1) county shall divide its dollar budget for certification to the separate counties by multiplying the amount of such budget by a fraction, the numerator of which shall be the total taxable value of all property in such taxing unit within the county to which such certification is to be made, and the denominator of which shall be the total taxable value of property in such taxing unit in all such counties. Budget certification to the participating counties of regional airport authorities shall be made in the manner prescribed in section 21-807(10), Idaho Code. Taxable value shall be certified by the county auditor of each affected county to such taxing unit and such certification shall be used in this formula. Except as provided in section 33-805, Idaho Code, relating to school emergency fund levies, the certification to the county commissioners required in this section shall be made not later than the Thursday prior to the second Monday in September, unless, upon application therefor, the county commissioners grant an extension of not more than seven (7) working days. After receipt of this certification, the county commissioners shall make a tax levy as a percent of taxable value of all property in the taxing district which, when applied to the tax rolls, will meet the budget requirements certified by such taxing districts.