SB21-SSA1-SA25,8,2217 3. "X-coordinate" means the relative location of a point along the east–west
18axis of the state. Unless otherwise measured within the context of an appropriate
19coordinate system obtained for use as permitted by subd. 1., the x-coordinate shall
20be measured along a line drawn due east from a due north and south line running
21through the point which is the western extremity of this state, to the point to be
22located.
SB21-SSA1-SA25,9,323 4. "Y-coordinate" means the relative location of a point along the north–south
24axis of the state. Unless otherwise measured within the context of an appropriate
25coordinate system obtained for use as permitted by subd. 1., the y-coordinate shall

1be measured along a line drawn due south from a due east and west line running
2through the point which is the northern extremity of this state, to the point to be
3located.
SB21-SSA1-SA25,9,104 (b) To the extent consistent with subs. (1) to (3), districts shall be compact in
5form. Compact districts are those which are square, rectangular, or hexagonal in
6shape to the extent permitted by natural or political boundaries. When it is
7necessary to compare the relative compactness of 2 or more districts, or of 2 or more
8alternative redistricting plans, the tests prescribed by pars. (c) and (d) shall be used.
9Should the results of these 2 tests be contradictory, the standard under par. (c) shall
10be given greater weight than the standard under par. (d).
SB21-SSA1-SA25,9,1311 (c) 1. The compactness of a district is greatest when the length of the district
12and the width of the district are equal. The measure of a district's compactness is
13the absolute value of the difference between the length and the width of the district.
SB21-SSA1-SA25,9,1814 2. In measuring the compactness of a district by means of electronic data
15processing, the difference between the x-coordinates of the easternmost and the
16westernmost geographic unit centers included in the district shall be compared to the
17difference between the y-coordinates of the northernmost and southernmost
18geographic unit centers included in the district.
SB21-SSA1-SA25,9,2519 3. To determine the length and width of a district by manual measurement, the
20distance from the northernmost point or portion of the boundary of a district to the
21southernmost point or portion of the boundary of the same district and the distance
22from the westernmost point or portion of the boundary of the district to the
23easternmost point or portion of the boundary of the same district shall each be
24measured. If the northernmost or southernmost portion of the boundary, or each of
25these points, is a part of the boundary running due east and west, the line used to

1make the measurement required by this subdivision shall be drawn either due north
2and south or as nearly so as the configuration of the district permits. If the
3easternmost or westernmost portion of the boundary, or each of these points, is a part
4of the boundary running due north and south, a similar procedure shall be followed.
5The lines to be measured for the purpose of this subdivision shall each be drawn as
6required by this subdivision, even if some part of either or both lines lies outside the
7boundaries of the district which is being tested for compactness.
SB21-SSA1-SA25,10,138 4. The absolute values computed for individual districts under this paragraph
9may be cumulated for all districts in a plan in order to compare the overall
10compactness of 2 or more alternative redistricting plans for the state or for a portion
11of the state. However, it is not valid to cumulate or compare absolute values
12computed using the measurements under subd. 2. with those computed using the
13measurements under subd. 3.
SB21-SSA1-SA25,10,1614 (d) 1. The compactness of a district is greatest when the ratio of the dispersion
15of population about the population center of the district to the dispersion of
16population about the geographic center of the district is one to one.
SB21-SSA1-SA25,11,217 2. The population dispersion about the population center of a district or about
18the geographic center of a district is computed as the sum of the products of the
19population of each population data unit included in the district multiplied by the
20square of the distance from the geographic unit center of that population data unit
21to the population center or the geographic center of the district, as the case may be.
22The geographic center of the district is defined by averaging the locations of all
23geographic unit centers which are included in the district. The population center of
24the district is defined by computing the population–weighted average of the
25x-coordinates and y-coordinates of each geographic unit center assigned to the

1district, it being assumed for the purpose of this calculation that each population
2data unit possesses uniform density of population.
SB21-SSA1-SA25,11,53 3. The ratios computed for individual districts under this paragraph may be
4averaged for all districts in a plan in order to compare the overall compactness of 2
5or more alternative redistricting plans for the state or for a portion of the state.
SB21-SSA1-SA25,11,11 6(7) In preparing any redistricting plan, the legislative reference bureau shall
7be strictly nonpartisan. No district may be drawn for the purpose of favoring a
8political party, incumbent legislator or member of Congress, or other person or group
9or, except to the extent required under sub. (1), for the purpose of augmenting or
10diluting the voting strength of a language or racial minority group. In establishing
11districts, no use shall be made of any of the following data:
SB21-SSA1-SA25,11,1212 (a) The residence addresses of incumbent legislators or members of Congress.
SB21-SSA1-SA25,11,1313 (b) Political affiliations of registered voters.
SB21-SSA1-SA25,11,1414 (c) Previous election results.
SB21-SSA1-SA25,11,1615 (d) Demographic information except as necessary to meet the requirements of
16sub. (1).
SB21-SSA1-SA25,11,25 17(8) The number of assembly districts in any redistricting plan may not be less
18than 54 nor more than 100. The number of senate districts in any redistricting plan
19may not be more than one-third nor less than one-fourth of the number of assembly
20districts. Each senate district shall contain only whole assembly districts. Except
21as otherwise provided in this subsection, to the extent possible, each congressional
22district shall contain only whole senate districts. The other standards specified in
23this section shall take precedence where a conflict arises between those standards
24and the requirement of including only whole senate districts within a congressional
25district.
SB21-SSA1-SA25,12,2
14.008 Required provisions in redistricting bills. Each bill delivered under
2s. 4.006 shall provide all of the following:
SB21-SSA1-SA25,12,4 3(1) That, wherever territory is described in the bill by geographic boundaries,
4the following conventions are used:
SB21-SSA1-SA25,12,65 (a) Each bound continues to the intersection with the bound next named, or to
6the intersection with a straight-line extension of such bound.
SB21-SSA1-SA25,12,87 (b) If the bound is a street, it follows the center line of the street or the center
8line of the street extended.
SB21-SSA1-SA25,12,109 (c) If the bound is a railroad right-of-way, it follows the center line of the
10railroad right-of-way.
SB21-SSA1-SA25,12,1211 (d) If the bound is a river or stream, it follows the center of the main channel
12of such river or stream.
SB21-SSA1-SA25,12,1313 (e) If the bound follows a municipal boundary, it coincides with such boundary.
SB21-SSA1-SA25,12,17 14(2) That the bill first applies, with respect to regular elections, to offices filled
15at the next occurring general election after the bill takes effect and, with respect to
16special or recall elections, to offices filled or contested on or after the date of that
17general election.
SB21-SSA1-SA25,13,3 184.0085 Challenge based on population inequality; burden of proof. If
19an action is brought challenging a legislative redistricting plan under this
20subchapter on the basis of an excessive population variance among senate or
21assembly districts established in the plan, the legislature has the burden of
22justifying any variance in excess of 10 percent between the population of a senate or
23assembly district and the applicable ideal district population. If an action is brought
24challenging a congressional redistricting plan under this subchapter on the basis of
25an excessive population variance among congressional districts established in the

1plan, the legislature has the burden of justifying any variance in excess of 1 percent
2between the population of a congressional district and the applicable ideal district
3population.
SB21-SSA1-SA25,5 4Section 5. 5.15 (4) (a) of the statutes is amended to read:
SB21-SSA1-SA25,13,235 5.15 (4) (a) Except as provided in par. (c), the division ordinance or resolution
6shall number all wards in the municipality with unique whole numbers in
7consecutive order, beginning with the number one, shall designate the polling place
8for each ward, and shall describe the boundaries of each ward consistent with the
9conventions set forth in s. 4.003 4.008 (1). The ordinance or resolution shall be
10accompanied by a list of the block numbers used by the U.S. bureau of the census that
11are wholly or partly contained within each ward, with any block numbers partly
12contained within a ward identified, and a map of the municipality which illustrates
13the revised ward boundaries. If the legislature, in an act redistricting legislative
14districts under article IV, section 3, of the constitution, or in redistricting
15congressional districts, establishes a district boundary within a municipality that
16does not coincide with the boundary of a ward established under the ordinance or
17resolution of the municipality, the municipal governing body shall, no later than
18April 10 of the 2nd year following the year of the federal decennial census on which
19the act is based, amend the ordinance or resolution to the extent required to effect
20the act. The amended ordinance or resolution shall designate the polling place for
21any ward that is created to effect the legislative act. Nothing in this paragraph shall
22be construed to compel a county or city to alter or redraw supervisory or aldermanic
23districts.
SB21-SSA1-SA25,6 24Section 6. 13.49 of the statutes is created to read:
SB21-SSA1-SA25,13,25 2513.49 Redistricting advisory commission. (1) Definitions. In this section:
SB21-SSA1-SA25,14,2
1(a) "Chief election officer" means the chief election officer of the government
2accountability board.
SB21-SSA1-SA25,14,33 (b) "Four selecting authorities" means all of the following:
SB21-SSA1-SA25,14,44 1. The majority leader of the senate.
SB21-SSA1-SA25,14,55 2. The minority leader of the senate.
SB21-SSA1-SA25,14,66 3. The speaker of the assembly.
SB21-SSA1-SA25,14,77 4. The minority leader of the assembly.
SB21-SSA1-SA25,14,88 (c) "Partisan public office" means any of the following:
SB21-SSA1-SA25,14,109 1. The office of governor, lieutenant governor, secretary of state, state treasurer,
10attorney general, state senator, or state representative to the assembly.
SB21-SSA1-SA25,14,1211 2. A county office which is filled by an election process involving nomination
12and election of candidates on a partisan basis.
SB21-SSA1-SA25,14,1413 (d) "Political party office" means an elective office in a political party, as defined
14in s. 5.02 (13), or in a national political party.
SB21-SSA1-SA25,14,2015 (e) "Relative" means an individual who is related to the person in question as
16father, mother, son, daughter, brother, sister, uncle, aunt, first cousin, nephew, niece,
17husband, wife, grandfather, grandmother, father-in-law, mother-in-law,
18son-in-law, daughter-in-law, brother-in-law, sister-in-law, stepfather,
19stepmother, stepson, stepdaughter, stepbrother, stepsister, half brother, or half
20sister.
SB21-SSA1-SA25,15,4 21(2) General provisions. (a) Not later than February 15 of the first year
22following the decennial federal census, a temporary redistricting advisory
23commission is created consisting of 5 members. Each of the 4 selecting authorities
24shall certify to the chief election officer the selecting authority's appointment of a
25person to serve on the commission. Within 30 days after the last selecting authority

1has certified his or her appointment, but not later than February 15 of the first year
2following the decennial federal census, the 4 commission members so appointed shall
3select, by a vote of at least 3 members, and certify to the chief election officer the 5th
4commission member, who shall serve as chairperson.
SB21-SSA1-SA25,15,65 (b) No individual may be appointed to the redistricting advisory commission
6who satisfies any of the following:
SB21-SSA1-SA25,15,87 1. The individual is not an eligible elector of this state at the time of the
8appointment.
SB21-SSA1-SA25,15,99 2. The individual holds partisan public office or political party office.
SB21-SSA1-SA25,15,1110 3. The individual is a relative of or is employed by a member of the legislature
11or of Congress, or is employed directly by the legislature or Congress.
SB21-SSA1-SA25,15,1812 (c) Members of the redistricting advisory commission appointed by a selecting
13authority shall be reimbursed from the appropriation account under s. 20.765 (1) (a)
14or (b), depending upon the house in which that member's appointing authority holds
15office, for actual and necessary expenses incurred in performance of duties as a
16commission member. The member who is not appointed by a selecting authority
17shall be reimbursed from the appropriation under s. 20.765 (1) (a) for actual and
18necessary expenses incurred in performance of duties as a commission member.
SB21-SSA1-SA25,15,2019 (d) A vacancy on the redistricting advisory commission shall be filled as
20provided in s. 17.20 (1) within 15 days after the vacancy occurs.
SB21-SSA1-SA25,15,2221 (e) Each redistricting advisory commission terminates upon complying with
22sub. (3).
SB21-SSA1-SA25,15,23 23(3) Duties. The redistricting advisory commission shall do all of the following:
SB21-SSA1-SA25,16,224 (a) If requested to do so by the legislative reference bureau, provide direction
25to the legislative reference bureau concerning any decision the legislative reference

1bureau must make in preparing a redistricting plan under subch. I of ch. 4 for which
2no clearly applicable guideline is provided under s. 4.007.
SB21-SSA1-SA25,16,53 (b) Upon delivery by the legislative reference bureau of a bill embodying a
4redistricting plan as required under s. 4.006, make available to the public at the
5earliest feasible time all of the following information:
SB21-SSA1-SA25,16,66 1. Copies of the bill.
SB21-SSA1-SA25,16,77 2. Maps illustrating the plan.
SB21-SSA1-SA25,16,98 3. A summary of the standards prescribed under s. 4.007 for development of the
9plan.
SB21-SSA1-SA25,16,1110 4. A statement of the population of each district included in the plan, and the
11relative deviation of each district population from the ideal district population.
SB21-SSA1-SA25,16,1312 (c) Upon delivery by the legislative reference bureau of an initial bill embodying
13a redistricting plan as required under s. 4.006 (1), do all of the following:
SB21-SSA1-SA25,16,1714 1. As expeditiously as reasonably possible, schedule and conduct at least 3
15public hearings, in different geographic regions of the state, on the plan embodied
16in the bill. No more than one public hearing may be held in the city of Madison and
17at least one public hearing shall be held in the northern half of the state.
SB21-SSA1-SA25,16,2418 2. Following the hearings held under subd. 1., promptly prepare and submit
19to the legislature in the manner provided under s. 13.172 (2) a report summarizing
20information and testimony received by the commission in the course of the hearings.
21The report may include any comments and conclusions which the commission's
22members deem appropriate concerning the information and testimony received at
23the hearings or otherwise presented to the commission. The report shall be treated
24in the same manner as a report submitted under s. 13.172 (2).
SB21-SSA1-SA25,17,7
1(4) Confidentiality. The redistricting advisory commission may establish
2policies limiting the information that the legislative reference bureau may provide
3to persons outside of the bureau staff concerning any redistricting plan prepared
4under subch. I of ch. 4, except that any such policy does not apply to a redistricting
5plan after a bill embodying that plan is delivered by the legislative reference bureau
6as required under s. 4.006 or to population data furnished to the legislative reference
7bureau by the U.S. bureau of the census.
SB21-SSA1-SA25,9315 8Section 9315. Initial applicability; Government Accountability Board.
SB21-SSA1-SA25,17,14 9(1m) Redistricting. The repeal of section 3.002 (2) of the statutes, the
10consolidation, renumbering, and amendment of section 3.002 (intro.) and (1m) of the
11statutes, the amendment of sections 3.004 (2) and 5.15 (4) (a) of the statutes, the
12repeal and recreation of subchapter I of chapter 4 [precedes 4.001] of the statutes,
13and the creation of section 13.49 of the statutes first apply to redistricting plans
14based on the 2020 decennial federal census.".
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