A. After the designation by the municipal governing body of a tax increment allocation district, the city clerk shall transmit a copy of the description of the district, a copy of the resolution or ordinance designating the district and a map or plat indicating the boundaries of the district to the clerk, assessor and treasurer of the county in which the tax increment allocation district is located. These documents shall be transmitted as promptly as practicable following the designation of the district, but in any event on or before January 1 of the next year following the designation of the district.

B. As soon as possible after the documents referred to in subsection A of this section have been received by the county assessor's office, the county assessor shall assess the value of all real property located in the tax increment allocation district. This assessed valuation, hereinafter referred to as the “base year net assessed valuation”, shall be certified to the county clerk and the city clerk on or before July 1 of the next year following the designation of any tax increment allocation district.