Colorado residents voted to legalize the therapeutic use of psilocybin, the chemical compound found in psychedelic mushrooms, in a 2022 ballot measure, launching two years of rulemaking before it could be used to treat conditions such as depression and PTSD.

Colorado joined Oregon in legalizing psilocybin therapy, though the drug remains illegal in most other states and federally.

Amid psychedelic therapy's legalization in Colorado, veterans implored Colorado Springs officials not to pass treatment restrictions.