This successful completion of this course satisfies the certification requirement for Dwelling Contractor Qualifier per Wis. Admin. Code SPS 305.31. 12 hours of instruction in dwelling construction subject matter in codes, laws, and business practice is required. This course is laid out in four lessons containing the following subject matter: Unified Dwelling Code (UDC) Chapter 321 – Construction Practices Agriculture, Trade, and Consumer Protection (ATCP) 110 – Home Improvement Practices Asbestos Awareness Confined Space in Construction