Thanks for participating in this study! Your participation is vital to our efforts to learn about what impacts California's marijuana policies have on young adult use of marijuana and other drugs.

Please check back soon to see updates on study results on the "Research" and "CHAYA in the News" tabs.

If you are participating in the study and your contact information has changed or you have a question about the study, please contact:

• Miles McNeely: MMcNeeley@chla.usc.edu, 323-361-8441 (desk) or 323-632-3635  (cell)
• Ali Johnson: aljohnson@chla.usc.edu, 310-709-0425 (cell)