Section 66.03125 - Fire departments; mutual assistance(1) In this section "fire department" has the meaning given in s. 66.0314(1) (c).(2)(a) Subject to sub. (3), upon the request of a fire department, the personnel of any other fire department may assist the requester within the requester's jurisdiction, notwithstanding any other jurisdictional provision.(b) If a request for assistance is made under par. (a), payment for the requested services shall be made by one of the following methods:1. If an agreement under s. 66.0301, or any other agreement between the parties, for the payment of such services exists, the terms of the agreement shall be followed.2. If no agreement described under subd. 1. for the payment of such services exists, the governmental unit that receives the assistance is responsible for the personnel or equipment costs incurred by the responding agency if the responding agency requests payment of those costs.(3) This section does not apply during a state of emergency declared by the governor under s. 323.10.2003 Wis. Act 186, which affected this section, contains extensive explanatory notes.