2023 - 2024 LEGISLATURE
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2023 ASSEMBLY BILL 25
February 10, 2023 - Introduced by Representatives KRUG, ARMSTRONG, KITCHENS,
MURPHY, MURSAU and WICHGERS, cosponsored by Senator JACQUE. Referred to
Committee on Agriculture.
1 AN ACT to renumber 94.64 (1) (a); to amend 94.64 (3m) (a) (intro.), 94.64 (3m)
2 (a) 1., 94.64 (9) (c), 94.65 (4) (a) (intro.) and 94.65 (4) (b); and to create 94.64
3 (1) (ag), 94.64 (1) (u), 94.64 (2) (f), 94.64 (3m) (a) 3., 94.65 (1) (bm), 94.65 (1) (fm)
4 and 94.65 (5m) of the statutes; relating to: the distribution and labeling of
5 fertilizers and soil or plant additives produced from manure.
Analysis by the Legislative Reference Bureau
This bill makes the following changes to requirements that apply to fertilizers
and soil or plant additives that are produced from converting manure into compost
or vermicompost and their derivatives:
1. The bill allows a person to distribute a fertilizer that is produced from
converting manure into compost or vermicompost and their derivatives and that has
a combined weight of nitrogen, phosphorus, and potassium that is less than 24
percent of the total weight of the fertilizer. Current law requires a fertilizer
distributed in this state to be guaranteed to contain a combined weight of nitrogen,
phosphorous, and potassium that is at least 24 percent of the total weight of the
fertilizer, unless either 1) the Department of Agriculture, Trade and Consumer
Protection promulgates a rule exempting the fertilizer; or 2) DATCP grants a permit
authorizing the distribution of the fertilizer as a nonagricultural or special-use
fertilizer.
2. The bill also exempts a fertilizer that is produced from converting manure
into compost from being required to contain a minimum amount of certain plant
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ASSEMBLY BILL 25
nutrients. Additionally, under the bill, a label, invoice, or statement accompanying
fertilizer produced from converting manure into compost is allowed to represent the
amount of plant nutrients or other beneficial substances contained in the fertilizer
if the truthfulness of the representation is substantiated by a typical analysis or
other scientifically validated analytical method.
3. Under the bill, DATCP may not require a controlled experimental field test
to substantiate the efficacy and usefulness of a soil or plant additive produced from
converting manure into compost. Under current law, DATCP may require the
efficacy and usefulness of a soil or plant additive to be substantiated by controlled
experimental studies using the soil or plant additive.
4. The bill allows the truthfulness of a statement on a permit application or
label of a soil or plant additive produced from converting manure into compost to be
substantiated by a typical analysis. Current law requires the label of a soil or plant
additive to make a guarantee about the minimum amount of the substances that it
contains.
For further information see the state fiscal estimate, which will be printed as
an appendix to this bill.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
1 SECTION 1. 94.64 (1) (a) of the statutes is renumbered 94.64 (1) (ar).
2 SECTION 2. 94.64 (1) (ag) of the statutes is created to read:
3 94.64 (1) (ag) “Beneficial substance” means a substance other than a plant
4 nutrient that improves the nourishment of cultivated plants or improves the
5 physical, chemical, or biological properties of soil.
6 SECTION 3. 94.64 (1) (u) of the statutes is created to read:
7 94.64 (1) (u) “Vermicompost” means a mixture of composted materials and
8 worm castings produced from a composting process that uses earthworms.
9 SECTION 4. 94.64 (2) (f) of the statutes is created to read:
10 94.64 (2) (f) Notwithstanding pars. (a) 3. and 4., (b) 5. and 6., and (e), all of the
11 following apply to a label or written or printed invoice or statement pertaining to a
12 fertilizer produced from converting unmanipulated animal or vegetable manure into
13 compost or vermicompost and their derivatives:
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ASSEMBLY BILL 25 SECTION 4
1 1. If the label, invoice, or statement includes a typical analysis, as defined in
2 s. 94.65 (1) (fm), of the plant nutrients contained in the fertilizer, the label, invoice,
3 or statement is not required to include a grade or guaranteed analysis for a plant
4 nutrient.
5 2. If the truthfulness of a representation made by a label, invoice, or statement
6 about the amount of plant nutrients contained in the fertilizer is substantiated by
7 a typical analysis, as defined in s. 94.65 (1) (fm), or other scientifically validated
8 analytical method, the representation is not required to be substantiated by a
9 guaranteed analysis.
10 3. If the truthfulness of a representation made by a label, invoice, or statement
11 about the amount of beneficial substances contained in the fertilizer is substantiated
12 by a typical analysis, as defined in s. 94.65 (1) (fm), or other scientifically validated
13 analytical method, the representation is not required to be substantiated by a
14 guaranteed analysis.
15 SECTION 5. 94.64 (3m) (a) (intro.) of the statutes is amended to read:
16 94.64 (3m) (a) (intro.) No person may distribute mixed fertilizer in which the
17 sum of the guarantees for nitrogen, available phosphate, and soluble potash totals
18 less than 24 percent unless any of the following applies:
19 SECTION 6. 94.64 (3m) (a) 1. of the statutes is amended to read:
20 94.64 (3m) (a) 1. The mixed fertilizer is exempted from this requirement by
21 department rule; or under sub. (9) (g).
22 SECTION 7. 94.64 (3m) (a) 3. of the statutes is created to read:
23 94.64 (3m) (a) 3. The mixed fertilizer is produced from converting
24 unmanipulated animal or vegetable manure into compost or vermicompost and their
25 derivatives.
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ASSEMBLY BILL 25 SECTION 8
1 SECTION 8. 94.64 (9) (c) of the statutes is amended to read:
2 94.64 (9) (c) Governing methods of sampling, testing, examining and analyzing
3 fertilizer, except that no rule under this paragraph may exclude the use of typical
4 analysis, as defined in s. 94.65 (1) (fm), or other scientifically validated analytical
5 methods for substantiating the truthfulness of representations made under sub. (2)
6 (f) 2. or 3.
7 SECTION 9. 94.65 (1) (bm) of the statutes is created to read:
8 94.65 (1) (bm) “Compost-based soil or plant additive” means a soil or plant
9 additive that is produced from converting unmanipulated animal or vegetable
10 manure into compost or vermicompost, as defined in s. 94.64 (1) (u), and their
11 derivatives.
12 SECTION 10. 94.65 (1) (fm) of the statutes is created to read:
13 94.65 (1) (fm) “Typical analysis” means an analysis of contents that is based
14 on the average amount of substances contained.
15 SECTION 11. 94.65 (4) (a) (intro.) of the statutes is amended to read:
16 94.65 (4) (a) (intro.) As a condition to the issuance of a permit or amended
17 permit under sub. (3), the department, subject to sub. (5m), may require that the
18 applicant substantiate, by scientific evidence:
19 SECTION 12. 94.65 (4) (b) of the statutes is amended to read:
20 94.65 (4) (b) The Subject to sub. (5m) (a), the department may require that the
21 substantiation under par. (a) 1. include replicable results of controlled experimental
22 studies using the soil or plant additive, the names and qualifications of the
23 researchers performing the studies and a complete description of the conditions and
24 procedures of the studies.
25 SECTION 13. 94.65 (5m) of the statutes is created to read:
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ASSEMBLY BILL 25 SECTION 13
1 94.65 (5m) COMPOST-BASED SOIL OR PLANT ADDITIVES. (a) The department may
2 not require that the substantiation under sub. (4) (a) and (b) related to a
3 compost-based soil or plant additive include a controlled experimental field test.
4 (b) If the truthfulness of a statement on a proposed soil or plant additive label
5 or in a permit or amended permit application is substantiated by a typical analysis
6 and the proposed soil or plant additive is a compost-based soil or plant additive, the
7 department may not require the truthfulness of the statement to be substantiated
8 by a guaranteed analysis.
9 (c) Notwithstanding sub. (5) (f), if a compost-based soil or plant additive is
10 labeled with a typical analysis of its contents, the compost-based soil or plant
11 additive is not required to be labeled with a guaranteed analysis of its contents.
12 (END)

Statutes affected:
Bill Text: 94.64(3m)(a)(intro.), 94.64, 94.64(3m)(a)1, 94.64(9)(c), 94.65(4)(a)(intro.), 94.65, 94.65(4)(b)