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S. 1907
U.S. Senate•In Senate Committee
Summary
S. 1907, the Plant Biostimulant Act of 2025, was introduced in the Senate on May 22, 2025 by Sen. Roger Marshall (R) with 3 co-sponsors. It was referred to Agriculture, Nutrition, And Forestry, and last saw action on May 22, 2025: Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry.
Record
Text
S. 1907 has 3 co-sponsors.
sb1907/introduced-in-senate.txt119 S1907 IS: Plant Biostimulant Act of 2025U.S. Senate2025-05-22text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.II119th CONGRESS1st SessionS. 1907IN THE SENATE OF THE UNITED STATESMay 22, 2025Mr. Marshall (for himself and Mr. Padilla ) introduced the following bill; which wasread twice and referred to the Committee onAgriculture, Nutrition, and ForestryA BILLTo amend the Federal Insecticide, Fungicide, and Rodenticide Act to providefor a consistent definition for plant biostimulants.1.Short titleThis Act may be cited as the Plant Biostimulant Act of 2025 .2.Defining plant biostimulants(a)In generalSection 2 of the Federal Insecticide, Fungicide, and Rodenticide Act ( 7 U.S.C. 136 ) is amended—(1)by striking subsection (v) and inserting the following:(v)Plant regulator(1)In generalThe term plant regulator means any substance or mixture of substances intended, through physiological action, for accelerating or retarding the rate of growth or rate of maturation, or for otherwise altering the behavior, of plants or the produce thereof.(2)ExclusionsThe term plant regulator does not include—(A)substances to the extent that they are intended as plant nutrients, trace elements, nutritional chemicals, plant inoculants, soil amendments, or vitamin hormone products; or(B)plant biostimulants that—(i)are of biological origin; or(ii)include chemical compounds that are synthetically derived, but are structurally similar and functionally identical to substances of biological origin.;(2)in subsection (hh)—(A)in paragraph (2), by striking or at the end;(B)in paragraph (3)—(i)in the matter preceding subparagraph (A), by striking substances. and inserting substances ; and(ii)in subparagraph (B)—(I)by inserting , or after volatilization ; and(II)by striking the period at the end and inserting a semicolon; and(C)by inserting before the undesignated matter following paragraph (3) the following:(4)a plant biostimulant; or(5)a nutritional chemical.; and(3)by adding at the end the following:(pp)Plant biostimulantThe term plant biostimulant means a substance, microorganism, or mixture thereof, that, when applied to seeds, plants, the rhizosphere, soil, or other growth media, acts to support a plant’s natural processes independently of the nutrient content of that substance, microorganism, or mixture thereof, and that thereby improves—(1)nutrient availability, uptake, or use efficiency;(2)tolerance to abiotic stress; and(3)consequent growth, development, quality, or yield.(qq)Nutritional chemicalThe term nutritional chemical —(1)means any substance or mixture of substances that interacts with plant nutrients in a manner that improves nutrient availability or aids the plant in acquiring or utilizing plant nutrients; and(2)includes some plant biostimulants.(rr)Vitamin hormone productThe term vitamin hormone product means a product consisting of a mixture of plant hormones, plant nutrients, inoculants, or soil amendments..(b)RegulationsNot later than 120 days after the date of enactment of this Act, the Administrator of Environmental Protection Agency shall revise the regulations under subchapter E of chapter I of title 40, Code of Federal Regulations (as in effect on the date of enactment of this Act), to carry out the amendments made by subsection (a).3.Soil health study(a)StudyThe Secretary of Agriculture (referred to in this section as the Secretary ) shall conduct a study to assess the types of, and practices using, plant biostimulants (as defined in section 2 of the Federal Insecticide, Fungicide, and Rodenticide Act ( 7 U.S.C. 136 )) that best achieve the following:(1)Increasing organic matter content.(2)Reducing atmospheric volatilization.(3)Promotion of nutrient management practices.(4)Limiting or eliminating runoff or leaching of soil or nutrients, such as phosphorus and nitrogen, into groundwater or other water sources.(5)Restoring beneficial bioactivity or healthy nutrients to the soil.(6)Aiding in carbon sequestration, nutrient use efficiency, and other climate-related benefits.(7)Supporting innovative approaches to improving agricultural sustainability, including the adoption of performance-based outcome standards and criteria.(b)ReportNot later than 2 years after the date on which funds are first made available to conduct the study under subsection (a), the Secretary shall make publicly available, and submit to the Committee on Agriculture of the House of Representatives and the Committee on Agriculture, Nutrition, and Forestry of the Senate, a report that describes the results of the study.
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2025-05-22
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
CRS Summary
The summaries are the Congressional Research Service’s, one per stage. Read them in full.
Introduced in Senate May 22, 2025
sb1907/introduced-in-senate.mdShown Here:
Introduced in Senate (05/22/2025)
Plant Biostimulant Act of 2025
This bill excludes certain plant biostimulants (i.e., substances, microorganisms, or mixtures thereof that support a plant's natural processes independently of the nutrient content) from regulation as pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).
Specifically, the bill excludes biological plant biostimulants (or those that are synthetic but structurally similar to substances of biological origin) from being classified as plant regulators, which are substances regulated as pesticides under FIFRA. Additionally, the bill excludes nutritional chemicals and plant biostimulants from being classified as nitrogen stabilizers, which are generally regulated as pesticides under FIFRA. The bill also establishes statutory definitions for plant biostimulants, nutritional chemicals, and vitamin hormone products.
The bill requires the Department of Agriculture to study and report on the types of plant biostimulants and practices of plant biostimulant use that best achieve certain results, such as increasing organic matter content.
Sponsors
Sen. Roger Marshall (R) sponsors S. 1907, and 3 members have co-sponsored it, 1 of them from the day it was introduced.
Committees
S. 1907 went before 1 committee: Agriculture, Nutrition, and Forestry.

Actions
S. 1907 has taken 2 actions since May 22, 2025.
| Chamber | Action | |||
|---|---|---|---|---|
May 22, 2025 | Senate | Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry.Agriculture, Nutrition, and Forestry Committee | ||
May 22, 2025 | — | Introduced in Senate |
Votes
S. 1907 has not gone to a roll call.
Related bills
1 bill is related to S. 1907.
Titles
S. 1907 goes by 3 titles, 1 of them short titles.
- Plant Biostimulant Act of 2025 — Display Title
- Plant Biostimulant Act of 2025 — Short Title(s) as Introduced
- A bill to amend the Federal Insecticide, Fungicide, and Rodenticide Act to provide for a consistent definition for plant biostimulants. — Official Title as Introduced
Lobbying
4 clients hired 4 firms and 15 registered lobbyists who named S. 1907 in 13 quarterly filings, 2025 to 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Environment/Superfund, Taxation/Internal Revenue Code, Agriculture, Budget/Appropriations, Transportation, Trade (domestic/foreign), Advertising, Homeland Security.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | — | Kansas | 1 | 5 | — |
| THE FERTILIZER INSTITUTE | — | Virginia | 1 | 5 | — |
| BIOLOGICAL PRODUCTS INDUSTRY ALLIANCE (BPIA) | Agriculture: Advancing sustainability through biological products. | Virginia | 1 | 2 | — |
| CONSUMER BRANDS ASSOCIATION (PKA: GROCERY MANUFACTURERS ASSOCIATION) | — | Virginia | 1 | 1 | — |
Firms
Registrants who filed on the bill, by filings.
Lobbyists
Named on the filings that cite the bill.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| EDWIN THOMAS | 1 | 1 | 5 |
| ROBERT HELLAND | 1 | 1 | 5 |
| RYAN BOWLEY | 1 | 1 | 5 |
| THOMAS LYNCH | 1 | 1 | 5 |
| CHAVA MCKEEL | 1 | 1 | 2 |
| JOHN DUNMORE | 1 | 1 | 2 |
| KAYTLIN BEMIS | 1 | 1 | 2 |
| LAUREN BERKOWITZ | 1 | 1 | 1 |
| NICHOLAS JOHNS | 1 | 1 | 1 |
| PHOENIX HURON | 1 | 1 | 1 |
| REAGAN GIESENSCHLAG | 1 | 1 | 1 |
| RHONDA BENTZ | 1 | 1 | 1 |
| RILEY CAGLE | 1 | 1 | 1 |
| THOMAS MADRECKI | 1 | 1 | 1 |
| WILLIAMSON GRASSLE | 1 | 1 | 1 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| CONSUMER BRANDS ASSOCIATION (PKA: GROCERY MANUFACTURERS ASSOCIATION) | CONSUMER BRANDS ASSOCIATION (PKA: GROCERY MANUFACTURERS ASSOCIATION) | 2026 second_quarter | $1.3M | 2nd Quarter - Report |
| THE FERTILIZER INSTITUTE | THE FERTILIZER INSTITUTE | 2025 second_quarter | $437.9K | 2nd Quarter - Report |
| THE FERTILIZER INSTITUTE | THE FERTILIZER INSTITUTE | 2026 second_quarter | $316.8K | 2nd Quarter - Report |
| THE FERTILIZER INSTITUTE | THE FERTILIZER INSTITUTE | 2025 fourth_quarter | $314.9K | 4th Quarter - Report |
| THE FERTILIZER INSTITUTE | THE FERTILIZER INSTITUTE | 2025 third_quarter | $243.3K | 3rd Quarter - Report |
| THE FERTILIZER INSTITUTE | THE FERTILIZER INSTITUTE | 2026 first_quarter | $223.5K | 1st Quarter - Report |
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | 2025 second_quarter | $20K | 2nd Quarter - Report |
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | 2026 second_quarter | $15K | 2nd Quarter - Report |
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | 2026 first_quarter | $10K | 1st Quarter - Report |
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | 2025 fourth_quarter | $10K | 4th Quarter - Report |
| GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | GOLF COURSE SUPERINTENDENTS ASSOCIATION OF AMERICA | 2025 third_quarter | $10K | 3rd Quarter - Report |
| BIOLOGICAL PRODUCTS INDUSTRY ALLIANCE (BPIA) | BIOLOGICAL PRODUCTS INDUSTRY ALLIANCE (BPIA) | 2026 second_quarter | — | 2nd Quarter - Report |
| BIOLOGICAL PRODUCTS INDUSTRY ALLIANCE (BPIA) | BIOLOGICAL PRODUCTS INDUSTRY ALLIANCE (BPIA) | 2026 first_quarter | — | 1st Quarter - Report |
Classification
The Congressional Research Service files S. 1907 under Environmental Protection, one of its 31 policy areas.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 1907’s is Environmental Protection.
s1907/policy-areas.txtSource: congress.gov · legiscan.com
