Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 75 - Retail Food Establishments
Appendix - Wisconsin Food Code
Chapter 9 - Mobile Food Establishments
Part 9-3 - LIQUID WASTE
Subpart 9-303 - Disposal
Section 9-303.11 - Disposal

(A) Every SERVICE BASE and MOBILE FOOD ESTABLISHMENT shall meet the requirements under subpart 5-4, as applicable, and

(B) The hose used for disposal of liquid waste shall be maintained in a clean and serviceable condition and when not in use shall be stored in a separate cabinet labeled "for waste water hose only."