This report details significant state workers’ compensation law and rule changes in 2017. There were 37 state legislatures that enacted workers compensation laws and 27 state agencies that adopted administrative rule changes in 2016. Medical exams, costs and fee schedules, electronic documentation, employer rates, claim appeal and adjudication as well as drug testing are the primary areas of law and rule activity. The extended list of changes categorized by issue and state is provided below as a handy reference. A detailed summary of the legislative and administrative changes in the 50 states, District of Columbia, Guam, Puerto Rico and the U.S. Virgin Islands follows.