[2][3] Following recreational legalization, existing growers and suppliers of medical cannabis were required to register, comply with regulations, and apply for permits.
Many existing growers have been slow to apply for permits as it has been estimated that 60 percent or more of all cannabis consumed in the United States comes from northern California.
Reducing illegal activity is considered essential for the success of legal operations who pay the considerable taxes assessed by state and local authorities.
This has led some state legislators to introduce bills that would force many local jurisdictions to allow some retail establishments, especially if a majority in the area voted in favor of legalizing cannabis for recreational purposes.
[33] Humboldt, Mendocino, and Trinity counties have long been known as Northern California's Emerald Triangle as it is estimated that 60 percent or more of all cannabis consumed in the United States is grown there.
A retail establishment Seaweed On Ocean, was licensed in Lompoc for on site consumption in July 2018 and opened December 2019, claims to be the first between Los Angeles and San Francisco.
[58] Unlike in other states where fears of black or Hispanic use of cannabis drove new restrictions, California was an exception for its focus on South Asian immigrants.
[67] Decriminalization of cannabis – which treats possession of small amounts as a civil (rather than a criminal) offense – was established in July 1975 when the state legislature passed Senate Bill 95, the Moscone Act.
[72] The law was enacted in 1994 at the urging of Governor Pete Wilson, who argued that the policy kept unsafe drivers off the road and helped prevent illegal drug use.
"[74] On September 30, 2010, Governor Arnold Schwarzenegger signed into law CA State Senate Bill 1449, which further reduced the charge of possession of one ounce (28 g) of cannabis or less, from a misdemeanor to an infraction, similar to a traffic violation—a maximum of a $100 fine and no mandatory court appearance or criminal record.
Proposition P was approved by 79% of San Francisco voters in November 1991, calling on state lawmakers to pass legislation allowing the medical use of cannabis.
[76] The city board of supervisors additionally passed a resolution in August 1992 urging the police commission and district attorney to "make lowest priority the arrest or prosecution of those involved in the possession or cultivation of [cannabis] for medicinal purposes" and to "allow a letter from a treating physician to be used as prima facia evidence that marijuana can alleviate the pain and suffering of that patient's medical condition".
[79] Following the lead of San Francisco and other cities in California, state lawmakers passed Senate Joint Resolution 8 in 1993, a non-binding measure calling on the federal government to enact legislation allowing physicians to prescribe cannabis.
[80] And Assembly Bill 1529 was approved in 1995, to create a medical necessity defense for patients using cannabis with a physician's recommendation, for treatment of AIDS, cancer, glaucoma, or multiple sclerosis.
[81] Proposition 215 – the Compassionate Use Act of 1996 – was subsequently approved with 56% of the vote, legalizing the use, possession, and cultivation of cannabis by patients with a physician's recommendation, for treatment of cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, or "any other illness for which marijuana provides relief".
In 2006 San Diego County filed a lawsuit over its required participation in the state ID card program,[83] but the challenge was later struck down and the city was forced to comply.
[86] Acknowledging that there were instances in which the system was abused and that laws could be improved, Stephen Gutwillig of the Drug Policy Alliance insisted that what Proposition 215 had accomplished was "nothing short of incredible".
[87] Seeking to enforce this prohibition, the Justice Department conducted numerous raids and prosecutions of medical cannabis providers throughout the state in subsequent years.
[88] Some state and local officials strongly supported these enforcement efforts, in particular Attorney General Dan Lungren who was a vocal opponent of Proposition 215 leading up to its passage.
[90] On the morning of September 5, DEA agents equipped with paramilitary gear and semiautomatic weapons stormed the premises, destroyed all the cannabis plants, and arrested the property owners Mike and Valerie Corral.
[84][91] This prompted an angry response from nearby medical cannabis patients – some in wheelchairs – who gathered at the site to block federal agents from leaving, until finally after three hours later the Corrals were released.
Further pushback against federal enforcement efforts occurred in June 2003 following the jury trial conviction of Ed Rosenthal, who had been raided by the DEA in 2002 for growing more than 100 cannabis plants in an Oakland warehouse.
[84] Rosenthal was easily convicted as a result; however, immediately following the trial, when jurors found out the true circumstances of the case, they publicly renounced the verdict they had just handed down and demanded a retrial.
[97] In Gonzales v. Raich (decided in 2005), the constitutionality of the Controlled Substances Act was challenged based on the idea that cannabis grown and consumed in California does not qualify as interstate commerce – but this argument was also found to be without merit.
[98] It was ultimately defeated by a wide margin (33–67%), but supporters were encouraged by the results,[99] which provided momentum to other reform efforts in California in subsequent years.
While the legislation failed to reach the Assembly floor, Ammiano stated his plans to reintroduce the bill later in the year, depending on the success of Proposition 19, the Regulate, Control and Tax Cannabis Act.
Critics such as John Lovell, lobbyist for the California Peace Officers' Association, argued that too many people already struggle with alcohol and drug abuse, and legalizing another mind-altering substance would lead to a surge of use, making problems worse.
[102] Apart from helping the state's budget by enforcing a tax on the sale of cannabis, proponents of the bill argued that legalization would reduce the amount of criminal activity associated with the drug.
In November 2010, California voters rejected Proposition 19 (by a vote of 53.5% to 46.5%), an initiative that would have legalized the use, possession, and cultivation of cannabis for adults age 21 and over, and regulated its sale similar to alcohol.
[103] The initiative faced stiff opposition from numerous police organizations in the state, while many growers in the Emerald Triangle were strongly opposed due to fears that corporate megafarms would put them out of business.