Wis. Stat. § 323.27: Electronic payments.

The adjutant general shall notify each local unit of government that it may receive payment from the division of emergency management via electronic means. At the request of a local unit of government, the adjutant general shall authorize the issuing of payment to the local unit of government through the use of money transfer techniques including, without limitation because of enumeration, direct deposit, electronic funds transfer, and automated clearinghouse procedures.