You must complete an approved 12-hour course to become certified as a Dwelling Contractor in Wisconsin. This is the fastest and easiest way to complete your education and our courses won’t let you fail. This 280-question 12-Hour Wisconsin Uniform Dwelling Codes Online Anytime guides you through the UBC Codes and how to use them. Each Question directs you to a specific code number for the answer to that question. There are also three brief chapters on Lead Paint Safety, Right to Cure Laws and Asbestos Abatement.