Bills › 91st General Assembly
Relating to water quality standards, including by providing for the regulation of animal feeding operations, providing penalties, and making penalties applicable
Sponsored by Sen. Herman C. Quirmbach (D), Sen. Art Staed (D)
Topics:Environment & natural resourcesLivestock & confinementsWater quality
Where it is now
- Done: IntroducedFebruary 10, 2026
- Done: SubcommitteeFebruary 12, 2026
- Stopped: Senate committeeDied when the General Assembly ended
- Next: Passes the Senate
- Next: House committeeFunnel: by March 20, 2026
- Next: Passes the House
- Next: To the Governor
- Next: Signed into law
Died when the session ended The General Assembly adjourned on October 2, 2026. Bills that didn’t pass both chambers died. What’s a funnel?
What’s in it
BACKGROUND —— STATE LAW. This bill amends provisions regulating animal feeding operations (AFOs) in which agricultural animals are confined and fed and maintained for days or more in any 12-month period, and includes all structures used for the storage of manure from animals in the operation and the discharge of manure or effluent originating from the AFO (Code chapters 459 and 459A). The regulations are administered and enforced by the department of natural resources (DNR) including the environmental protection commission (EPC).
Read the full explanation
State law recognizes several types of AFOs, including confinement feeding operations (CFOs) in which animals are housed (confined) under roof (Code chapter 459). Special provisions govern open feedlots where animals are kept in unroofed or partially roofed structures (Code chapter 459A). In both cases, natural vegetation is not available to feed the animals. In Iowa, a CFO is subject to both air and water protection statutes and rules. Under water quality regulations, the owner or operator of an AFO may be required to obtain authorization from DNR to do business.208).311). The level of regulation sometimes depends upon a formula that calculates the degree to which the AFO presents a threat to water quality measured by: (1) the type of animals maintained and (2) the number of animals maintained.4 equivalency factor = 2,500 head of such swine). BACKGROUND —— FEDERAL LAW. 122 and 412). EPA contracts with DNR to administer and enforce the NPDES program. Under the NPDES program, AFOs are referred to as concentrated animal feeding operations (CAFOs). A CAFO is classified by its own formula that also factors the type and number of animals kept. The regulations apply to large, medium, and small CAFOs. For example, a small CAFO includes less than 750 head of swine weighing or more pounds, a medium CAFO includes between 750 and 2,499 head, and a large CAFO includes 2,500 or more head. BACKGROUND —— STATE AND FEDERAL REGULATION. The purpose of both state and federal regulation is to prevent manure or effluent from contaminating groundwater and surface water.311)., land application).401).401). BILL’S PROVISIONS. The bill rewrites the definition of an animal feeding operation based on federal law. It changes the term “medium concentrated animal feeding operation” to “medium animal feeding operation” without changing the meaning. The bill eliminates the provision that prevents EPC rules regulating wastewater, or manure or effluent originating from an AFO, from being more stringent than federal law. The bill provides that statutes regulating AFOs are minimum requirements, and that the EPC is to adopt permitting requirements by rule under the NPDES program, including for those AFOs classified as medium and large CAFOs under federal law. The EPC rules may exceed applicable federal standards applying to a medium or large CAFO. In addition, the owner or operator of a medium or large CAFO must conduct effluent monitoring of pollutants discharged to navigable waters through the groundwater. The owner or operator must report the collected data to DNR which must publish it on its internet site and submit an annual report to the EPA. CIVIL PENALTIES.103).603).502). The bill also provides that the person is subject to the administratively assessed civil penalty.
From the explanation printed with the bill as introduced, written by the Legislative Services Agency. Amendments adopted later aren’t reflected. Full bill text
Senate subcommittee
Named February 12, 2026. It hasn’t reported yet.
Three legislators hear a bill first and recommend what the committee should do; it’s the best time to weigh in. How to take part
Iowa Code it changes
Creates§459.301A
Amends§455B.173§459.102§459.103§459.301§459.311§459A.102§459A.401§459A.502
Read from the bill as introduced. Each links to every bill touching that chapter of the Iowa Code. How the Code works
Lobbying
4 for · 0 against · 3 undecided · Who →
Family tree
Where this legislation came from and where it went: earlier tries, the versions it moved through this Assembly, and later bills built on it.
91st General Assembly
Earlier and later bills are matched by wording or an identical title; check the text to be sure it’s the same idea.
Tried before
This idea has been filed in an earlier General Assembly. None got through a chamber.
- HF 2354 Relating to water quality, including by providing for the permitting and monitoring of ani…90th General Assembly · In committee · nearly identicalCleared committee
- HF 2156 Relating to water quality standards, including by providing for the regulation of animal f…90th General Assembly · In committee · nearly identicalCleared committee
Similar bills this General Assembly
- HF 368 Relating to water quality standards, including by providing for the regulation of animal f…91st General Assembly · In committeeNearly identical
Matched by the wording of each bill’s explanation, or an identical title. Companion bills and renumbered versions of this bill aren’t listed; they’re the same bill.