New law requires employers to post two Kansas Workers’ Compensation posters. One poster applies to injuries on or after May 11, 2011 and before April 25, 2013. The second poster applies to injuries sustained at work on or after April 25, 2013. A new law reduced the time employees have to report workplace accidents to 20 days for injuries sustained on or after April 25, 2013. Ensure your business stays in compliance with both State & Federal Labor Law Posters.