It's probably best if you contact them directly.

The Colorado Medical Marijuana Registry
4300 Cherry Creek Drive South
Denver, CO 80246-1530

e-mail:
[email protected]

Web site:
Colorado: Department of Public Health and Environment, Colorado Medical Marijuana Registry

Phone:
303-692-2184

DROP OFF BOX:
Colorado Department of Public Health and Environment
710 S. Ash Street, South East Entrance
Inside the fist set of glass doors will be a Drop Box for MMR applications. Doors open: Monday-Friday, 7:00 a.m. to 6:00 p.m. Your application must be in a sealed envelope. You will not receive a receipt. If you wish to have a receipt, please mail in your application by certified mail.