Here is a handy list of the specific laws, regulations and bills either currently active or in progress, in order from most recent to earliest:

THE 1-3 ACT OF 2021, introduced in Jan. 2021, pushes the Drug Enforcement Administration to move cannabis from a schedule I to a schedule III-classified drug. Schedule I drugs typically have high potential for abuse and no medical use, while schedule III drugs have less potential for abuse, accepted medical use and very low risk of dependence.

BALLOT MEASURE 67, otherwise known as the Oregon Medical Marijuana Act, was passed in 1998 and modified state laws to allow for marijuana consumption and possession by approval from a doctor but only for certain medical conditions. At this point, patients could own no more than seven plants and four ounces of marijuana in any form.

BALLOT MEASURE 91, or the Oregon Legalized Marijuana Initiative, which was passed in 2014, legalized recreational marijuana for anyone 21 or older.

THE DRUG-FREE SCHOOLS AND COMMUNITIES ACT was passed in 1989 and revised the use of state funding to include grants establishing schools as drug-free zones. It also called for revision of drug education and enhanced community involvement from schools in anti-drug efforts.

THE CONTROLLED SUBSTANCES ACT OF 1970 categorized substances that were previously regulated under federal law into five different schedules. Schedule I drugs are classified as the most dangerous, while schedule V drugs are classified as the least. Substances are categorized based on potential for abuse, medical and medicinal value, how much is known about a drug, the scale of abuse, public health risk and psychological dependence.

THE DRUG-FREE WORKPLACE ACT was passed in 1988 and required that recipients of federal funds provide and enforce a drug-free workplace in order to continue receiving or be approved for federal funding.