Frequently asked questions Can I be/have a caregiver for a medical marijuana patient in Maine? Yes, medical marijuana patients in Maine can have a caregiver. To apply as a caregiver, follow this process: Complete the following application form: https://www.maine.gov/dafs/omp/sites/maine.gov.dafs.omp/files/inline-files/OMP_MMMP_Form-001_Application-Caregiver.pdf. Caregivers must: Be at least 21 years of age or above. Have no background of any qualifying drug offense. Must be registered with the Department of Health and Human Service (DHHS) by submitting a completed form and required registration fee.