Minnesota Department of Public Safety - Division of Homeland Security and Emergency Management - https://dps.mn.gov/divisions/hsem/Pages/default.aspx
Note: it is unclear whether the plan has been updated since 2015. A webpage indicates that those interested in obtaining a copy of plan must contact the MEOP Planning Coordinator: https://dps.mn.gov/divisions/hsem/all-hazards-planning/Pages/meop.aspx.
Information from 2015 plan:
The Minnesota Emergency Operations Plan can be accessed on the website directly at https://dps.mn.gov/divisions/hsem/all-hazards-planning/Documents/2015-meop-official.pdf.
Minnesota Veterinary Medical Association (MVMA). In the event of a nuclear generating plant incident, MVMA will coordinate with Minnesota Veterinary Reserve Corp and assist HSEM and DHS in ensuring that reception center personnel report to the reception center at the Site Area Emergency classification level or as soon as possible during a rapidly escalating event to perform monitoring, decontamination and registration of household pets and service animals. Livestock and exhibition/large animals are sheltered in place and are not transported to reception centers during nuclear power plant emergencies.
(pages 164-165 of the pdf).
The plan defines "household pet" as "[a] domesticated animal, such as a dog, cat, bird, rodent (including a rabbit), or turtle that is traditionally kept in the home for pleasure rather than for commercial purposes and can travel in commercial carriers and be housed in temporary facilities. Household pets do not include reptiles (except turtles), amphibians, fish, insects/arachnids, farm animals (including horses), and animals kept for racing purposes" (see page 239 of the attached pdf).