You are required to complete 12 hours of approved education every two years to keep your Wisconsin Contractors license. You do not have to take all 12 hours in one course. Wisconsin sends out a renewal notice 4-6 weeks before your renewal date (which is 3 months prior to your expiration date). This 12-Hour Wisconsin Safety for Dwelling Contractors Continuing Education Online Anytime package includes 2 online HD-video courses equal to 12 credit hours of approved continued education: 6-Hour WI Video Construction Safety and 6-Hour WI Video Lead Paint Safety. Students will have six months of access to course content.