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3. Colorado Department of Revenue. Laws: constitution, statues and regulations—marijuana enforcement. Available at https://www.colorado.gov/pacific/enforcement/laws-constitution-statutes-and-regulations-marijuana-enforcement.
4. Marijuana Enforcement Division, Colorado Department of Revenue. Permanent rules related to the Colorado retail marijuana code. 1 CCR 212–2. Available at https://www.colorado.gov/pacific/sites/default/files/Retail%20Marijuana%20Rules,%20Adopted%20090913,%20Effective%20101513%5B1%5D_0.pdf.
5. Ingold J. Proposed Colorado marijuana edibles ban shows lingering pot discord. The Denver Post. October 20, 2014. Available at http://www.denverpost.com/news/ci_26765732/proposed-colorado-marijuana-edibles-ban-shows-lingering-pot.