66.1105 (4m) (a) Any city that seeks to create a tax incremental district or amend a project plan shall convene a temporary joint review board under this paragraph, or a standing joint review board under sub. (3) (g), to review the proposal. The Except as provided in par. (am), and subject to par. (ae), the board shall consist of one representative chosen by the school district that has power to levy taxes on the property within the tax incremental district, one representative chosen by the technical college district that has power to levy taxes on the property within the tax incremental district, one representative chosen by the county that has power to levy taxes on the property within the tax incremental district, one representative chosen by the city, and one public member. If more than one school district, more than one union high school district, more than one elementary school district, more than one technical college district or more than one county has the power to levy taxes on the property within the tax incremental district, the unit in which is located property of the tax incremental district that has the greatest value shall choose that representative to the board. The public member and the board's chairperson shall be selected by a majority of the other board members before the public hearing under sub. (4) (a) or (h) 1. is held. All board members shall be appointed and the first board meeting held within 14 days after the notice is published under sub. (4) (a) or (h) 1. Additional meetings of the board shall be held upon the call of any member. The city that seeks to create the tax incremental district or to amend its project plan shall provide administrative support for the board. By majority vote, the board may disband following approval or rejection of the proposal, unless the board is a standing board that is created by the city under sub. (3) (g).

66.1105 (4m) (ae) 1. A representative chosen by a school district under par. (a) or (am) shall be the president of the school board, or his or her designee. If the school board president appoints a designee, he or she shall give preference to the school district's finance director or another person with knowledge of local government finances.

2. The representative chosen by the county under par. (a) shall be the county executive or, if the county does not have a county executive, the chairperson of the county board, or the executive's or chairperson's designee. If the county executive or county board chairperson appoints a designee, he or she shall give preference to the county treasurer or another person with knowledge of local government finances.

3. The representative chosen by the city under par. (a) shall be the mayor, or city manager, or his or her designee. If the mayor or city manager appoints a designee, he or she shall give preference to the person in charge of administering the city's economic development programs, the city treasurer, or another person with knowledge of local government finances.

4. The representative chosen by the technical college district under par. (a) shall be the district's director or his or her designee. If the technical college district's director appoints a designee, he or she shall give preference to the district's chief financial officer or another person with knowledge of local government finances.

66.1105 (4m) (am) If a city seeks to create a tax incremental district that is located in a union high school district, the seat that is described under par. (a) for the school district representative to the board shall be held by 2 representatives, each of whom has one-half of a vote. Subject to par. (ae), one representative shall be chosen by the union high school district that has the power to levy taxes on the property within the tax incremental district and one representative shall be chosen by the elementary school district that has the power to levy taxes on the property within the tax incremental district.

66.1105 (4m) (b) 2. Except as provided in subd. 2m., no tax incremental district may be created and no project plan may be amended unless the board approves the resolution adopted under sub. (4) (gm) or (h) 1. by a majority vote not less than 10 days nor more than within 30 days after receiving the resolution. The board may not approve the resolution under this subdivision unless the board's approval contains a positive assertion that, in its judgment, the development described in the documents the board has reviewed under subd. 1. would not occur without the creation of a tax incremental district.

66.1105 (4m) (b) 2m. The requirement under subd. 2. that a vote by the board take place not less than 10 days nor more than within 30 days after receiving a resolution does not apply to a resolution amending a project plan under sub. (4) (h) 1. if the resolution relates to a tax incremental district, the application for the redetermination of the tax incremental base of which was made in 1998, that is located in a village that was incorporated in 1912, has a population of at least 3,800 and is located in a county with a population of at least 108,000.

66.1105 (4m) (b) 4. The board shall notify prospectively the governing body of every local governmental unit that is not represented on the board, and that has power to levy taxes on the property within the tax incremental district, of meetings of the board and of the agendas of each meeting for which notification is given.

66.1105 (5) (a) Upon Subject to sub. (8) (d), upon the creation of a tax incremental district or upon adoption of any amendment subject to par. (c), its tax incremental base shall be determined as soon as reasonably possible.

66.1105 (5) (b) Upon application in writing by the city clerk, in a form prescribed by the department of revenue, the department shall determine according to its best judgment from all sources available to it the full aggregate value of the taxable property and, except as provided in par. (bm), of the city-owned property in the tax incremental district. The application shall state the percentage of territory within the tax incremental district which the local legislative body estimates will be devoted to retail business at the end of the maximum expenditure period specified in sub. (6) (am) 1. if that estimate is at least 35%. Subject to sub. (8) (d), the department shall certify this aggregate valuation to the city clerk, and the aggregate valuation constitutes the tax incremental base of the tax incremental district. The city clerk shall complete these forms, including forms for the amendment of a project plan, and submit the application or amendment forms on or before December 31 of the year the tax incremental district is created, as defined in sub. (4) (gm) 2. or, in the case of an amendment, on or before December 31 of the year in which the changes to the project plan take effect.

66.1105 (5) (c) If the city adopts an amendment to the original project plan for any district which subtracts territory from the district or which includes additional project costs at least part of which will be incurred after the period specified in sub. (6) (am) 1., the tax incremental base for the district shall be redetermined, if sub. (4) (h) 2., 3., 4., or 5. applies to the amended project plan, either by subtracting from the tax incremental base the value of the taxable property that is subtracted from the existing district or by adding to the tax incremental base the value of the taxable property and the value of real property owned by the city, other than property described in par. (bm), that is added to the existing district under sub. (4) (h) 2., 3., 4., or 5. or, if sub. (4) (h) 2., 3., 4., or 5. does not apply to the amended project plan, under par. (b), as of the January 1 next preceding the effective date of the amendment if the amendment becomes effective between January 2 and September 30, as of the next subsequent January 1 if the amendment becomes effective between October 1 and December 31 and if the effective date of the amendment is January 1 of any year, the redetermination shall be made on that date. The With regard to a district to which territory has been added, the tax incremental base as redetermined under this paragraph is effective for the purposes of this section only if it exceeds the original tax incremental base determined under par. (b).

66.1105 (5) (ce) If the city adopts an amendment, to which sub. (4) (h) 2., 3., 4., or 5. applies, the tax incremental base for the district shall be redetermined, either by subtracting from the tax incremental base the value of the taxable property that is subtracted from the existing district or by adding to the tax incremental base the value of the taxable property and the value of real property owned by the city, other than property described in par. (bm), that is added to the existing district under sub. (4) (h) 2., 3., 4., or 5., as of the January 1 next preceding the effective date of the amendment if the amendment becomes effective between January 2 and September 30, as of the next subsequent January 1 if the amendment becomes effective between October 1 and December 31 and if the effective date of the amendment is January 1 of any year, the redetermination shall be made on that date. The With regard to a district to which territory has been added, the tax incremental base as redetermined under this paragraph is effective for the purposes of this section only if it exceeds the original tax incremental base determined under par. (b).

66.1105 (5) (d) The department of revenue may not certify the tax incremental base as provided in par. (b) until it determines that each of the procedures and documents required by sub. (4) (a), (b), (gm) or (h) and par. (b) has been timely completed and all notices required under sub. (4) (a), (b), (gm) or (h) timely given. The facts supporting any document adopted or action taken to comply with sub. (4) (a), (b), (gm) or (h) are not subject to review by the department of revenue under this paragraph, except that the department may not certify the tax incremental base as provided in par. (b) until it reviews and approves of the findings that are described in sub. (4) (gm) 4. c.