Gov. Pat Quinn signed HB1 into law Aug. 1, making Illinois the 20th state to legalize medical marijuana. Nearly 40% of people in the US now live in states that have adopted such laws. The Illinois Compassionate Use of Medical Cannabis Pilot Program Act creates a framework to protect physicians and certain qualified medical marijuana patients from arrest and prosecution. HB1 was passed 35-21 by the Illinois House in April, and 61-57 by the Senate in May. HB1, which is scheduled to sunset in four years, was called one of the most restrictive laws in the country by its Senate sponsor Bill Haine (D-Alton). The new law is set to take effect on January 1, 2014.