Learn to Hunt
Report Your Harvest
Quick and easy access to recreational privileges in Iowa, including hunting, fishing, and specialty licenses:
Purchase Your Licenses Online
Iowa's natural resources plates include the state bird and flower, pheasant, eagle, buck and a Brook trout. Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Experience Iowa's natural beauty and all the fun our state parks offer. Make your online reservation for state park cabins, camping sites, shelters and lodges.
Support conservation in Iowa by buying a natural resource plate for your vehicle.
Natural Resource Plates
Iowa DNR Customer Service
Mon - Fri, 8:00am - 4:30pm CST
Submit Online Inquiry
Information / Records Requests
Contact Information by County
DES MOINES – In January, 89 of 99 Iowa counties notified DNR that they plan to evaluate construction permit applications and proposed locations for animal confinements by using the master matrix.
With 10 exceptions, all counties will use the matrix during the next 12 months. The following counties will not use the matrix in 2018: Davis, Des Moines, Keokuk, Lee, Mahaska, Osceola, Plymouth, Wapello, Warren and Washington.
Animal producers in these counties must meet more requirements than other confinement producers who need a construction permit. Producers qualify by choosing a site and using practices that reduce impacts on air, water and the community.
Counties that adopt the master matrix can provide more input to producers on site selection, and proposed structures and facility management. Participating counties score each master matrix submitted in their county and can recommend to approve or deny the construction permit. They can also join in DNR visits to a proposed confinement site.
While all counties may submit comments to DNR during the permitting process, counties that adopt the master matrix can also appeal a preliminary permit to the state Environmental Protection Commission.
The deadline for enrolling in the program is Jan. 31 of each year.
Find more information, including a map of participating counties by searching for Master Matrix at www.iowadnr.gov/afo or directly on the master matrix web page.
The master matrix applies to producers who must get a construction permit to build, expand or modify a totally roofed facility. Generally, these are confinement feeding operations with at least 2,500 finishing hogs, 1,000 beef cattle or 715 mature dairy cows.