A certificate of cattle brand is required or encouraged to verify cattle ownership with the local state government. The best way to establish cattle ownership is with a hot iron brand.
Additional rules and regulations for cattle registration vary. For example, Wisconsin requires livestock premises registration, Oregon requires annual ownership inspection and California requires interstate livestock entry permits for cattle transported into the state. Each state has explicit Food and Agriculture codes explaining relevant nuances.
In addition, the Internal Revenue Service recognizes cattle as property under section 1231 of the U.S. Tax Code. In the event of a cattle sale or tax-depreciation, appropriate tax forms must be filed with the IRS.