Directory enquiries <a href=" http://www.crosscarefoodbank.ie/index.php/best-site-to-buy-college-essay#doom ">essay on the internet and its advantages and disadvantages</a> A: No one knows for sure, but estimates are several months to more than a year after the law takes effect Jan. 1. That's because three separate state agencies &mdash; the departments of Public Health, Agriculture and Financial and Professional Regulation &mdash; must draft rules for patients, growers and dispensaries. Then the rules must be approved by a legislative committee. Next comes issuing permits and setting up the 22 so-called cultivation centers where the plants will be grown. They'll be set up in each Illinois State Police district, and state authorities will review security plans. The marijuana will be sold in up to 60 dispensaries. Nineteen other states and Washington, D.C., have implemented medical marijuana laws but implementation time has varied greatly. The longest was Washington, D.C., where medical marijuana was available for purchase just last month, 15 years after voters approved. Maine took less than a year. New Jersey took about three years and still only one dispensary is open in the state.