Yes you have to register your feedlot with the Feedlot Office every Four years. (Minnesota Rule Chapter 7020) The Feedlot Office will send you a Re-registration form in the mail with a letter of instruction. Fill it out and return it to the Feedlot Office. P.O. Box 655 Preston, MN 55965
There is cost share money available through the Soil and Water Conservation District 507-765-3878 Ext: 123 and talk with Anne Koliha. Currently there is additional cost share money available through the County Feedlot Office at 50% up to $5,000.00 whichever is less.
No your registration will still be good for five (5) years from the date that you last had animals. (If your infrastructure is still in place after 5 years you will still be able to bring back your registration. but if you take the infrastructure out and then want to start over after five (5) years you will have to meet all of the Zoning Setbacks).