marijuana plant
A marijuana plant. Times of San Diego photo

California prohibits children from cannabis dispensaries and shields them from cannabis marketing, but those statewide restrictions are not working as well as policymakers had hoped, according to a UC San DiegoUSC study released Tuesday.

The study in JAMA Pediatrics evaluates how regulations designed to protect minors have held up five years after voters legalized cannabis.

The study looked at 700 licensed cannabis dispensaries in California and found that many retail locations have inadequate screening processes, which allow minors to enter and view items that should be restricted to adults 21 and over.

In California, dispensaries are required to screen out underage customers before they reach retail areas where cannabis marketing and products are displayed. They do this by posting clearly visible age-limit signage and by having an ID checkpoint. The checkpoint can be on the exterior or interior, as long as it’s before the area where products are displayed.

Trained researchers who were close to the legal age to purchase cannabis — usually between 21 and 23 years old — were sent into dispensaries across California to test these screening processes. The researchers assessed regulations like age-limit signage, ID checkpoints and exposure to cannabis marketing materials.

Ninety-seven percent of the dispensaries complied with ID checks, but only 12% of dispensaries checked IDs outside and nearly 68% failed to comply with age-limit signage. Most dispensaries required proof only after entering, where cannabis marketing materials and products were present.

“The low rate of compliance with age-limit signage and exterior ID checkpoints means it is easier for minors to enter cannabis dispensaries,” said lead author and study principal investigator Yuyan Shi, an associate professor in the Herbert Wertheim School of Public Health and Human Longevity Science at UCSD. “Once they’re inside, whether it is accidental or not, they can see an array of cannabis marketing materials and products.”

City News Service contributed to this article.