The 2017 Research Bulletin details significant state workers’ compensation law and rule changes in 2016. There were 31 state legislatures (including the District of Columbia) that enacted workers compensation laws and 28 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 Research Bulletin includes 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.