Senate Bill 175 mandates that political subdivisions in Wisconsin must reduce building permit fees by 75 percent or $500, whichever is less, for improvements made to the primary residence of disabled veterans. This fee reduction applies specifically when the improvements are necessary to accommodate the veteran's disability and the residence is owned by the veteran or their caretaker. The bill also includes a definition of "disabled veteran" as per existing law.

Additionally, the bill allows political subdivisions to require proof that the applicant meets certain criteria before granting the fee reduction. This includes verification that the individual qualifies as a disabled veteran, that the residence is indeed their primary home, that the improvements are necessary for their disability, and that the property is owned by the veteran or their caretaker. The bill aims to support disabled veterans by alleviating some of the financial burdens associated with necessary home modifications.