Harris called on the Department of Health and Human Services and the Department of Justice to hasten a reclassifying of marijuana as less harmful than drugs like heroin.
The Department of Health and Human Services last year recommended that cannabis be reclassified from its current treatment as a Schedule I to a Schedule III drug with a moderate potential for causing addiction.
The decision now rests with the Department of Justice's Drug Enforcement Administration.
Nearly 40 U.S. states have legalized marijuana use in some form, but it remains completely illegal in some states and at the federal level.
