Beginning Jan. 8, 2026, commercial manure applicators can fulfill annual training for manure applicator certification (MAC) requirements at 73 locations in Iowa

December 11, 2025

Animal Feeding Operations

News Release

County requirements to signup for evaluating animal confinement sites

Counties interested in evaluating construction permits for proposed animal feeding facilities must adopt a construction evaluation resolution.

December 11, 2025

Animal Feeding Operations

News Release

Winter land application limits begin in December

Dry conditions and warm weather provided an early harvest and manure application season.

December 11, 2025

Animal Feeding Operations

News Release

Iowa DNR launches new website design, April 2025

The Iowa DNR launched a new design for its website in February, providing a streamlined, user-friendly experience for visitors.

April 10, 2025

Animal Feeding Operations

News Release

Low number of manure releases reported in 2024

In 2024, the state of Iowa saw a low number of manure releases reported.

April 10, 2025

Animal Feeding Operations

News Release

Livestocks water quality conservation loans available

The State Revolving Fund (SRF) offers conservation loans to landowners for installing water quality practices via Linked Deposit loan programs.

February 13, 2025

Animal Feeding Operations

News Release

Manure Applicator Certification (MAC) Renewals due by March 1

Certificates expire annually on March 1 for commercial manure applicators.

February 13, 2025

Animal Feeding Operations

News Release

Iowa Phosphorus (P) Index Calculator update

Manure management planners should note that the Iowa NRCS updated the Iowa Phosphorus (P) Index calculator in April of 2024.

February 13, 2025

Animal Feeding Operations

News Release

Eighty five counties adopt Master Matrix

Eighty five of Iowa's ninety nine counties adopted the livestock Master Matrix for the upcoming 12 months.

February 13, 2025

Animal Feeding Operations

Come visit DNR at the 2024 Iowa Pork Congress

Iowa DNR specialists will be in Booth 120 at the Iowa Pork Congress in Des Moines in late January.

January 10, 2024

Animal Feeding Operations

Events & Public Meetings

DNR to host a virtual public meeting regarding Supreme Beef nutrient management plan

The Iowa DNR will be hosting a virtual public meeting on Monday, Oct. 16, 2023 at 10 a.m. to gather public comment on the Supreme Beef, LLC Nutrient Management.

September 21, 2023

Animal Feeding Operations

Events & Public Meetings

DNR Virtual Public Meeting for Supreme Beef, LLC Nutrient Management Plan

The Iowa Department of Natural Resources will be hosting a virtual public meeting on Tuesday, August 8, 2023, at 10:00 am.

July 24, 2023

RSS Feed

Animal Feeding Operations

Animal Feeding Operations

Delay application to preserve nutrients and save money

Tips for successful fall manure application

Get certified before you apply: Complete your annual manure certification today

Pre-register for MAC training by Dec. 30 for commercial applications

County requirements to signup for evaluating animal confinement sites

Winter land application limits begin in December

Iowa DNR launches new website design, April 2025

Low number of manure releases reported in 2024

Livestocks water quality conservation loans available

Manure Applicator Certification (MAC) Renewals due by March 1

Iowa Phosphorus (P) Index Calculator update

Eighty five counties adopt Master Matrix

Come visit DNR at the 2024 Iowa Pork Congress

DNR to host a virtual public meeting regarding Supreme Beef nutrient management plan

DNR Virtual Public Meeting for Supreme Beef, LLC Nutrient Management Plan

Iowa DNR Customer Service

Phone

How can we help?