Final answer:
In Michigan, DDS and DVM professionals must have a license to prescribe controlled substances to a pharmacy, adhering to state-specific regulatory requirements and possibly obtaining a DEA number.
Step-by-step explanation:
In Michigan (MI), both Doctor of Dental Surgery (DDS) and Doctor of Veterinary Medicine (DVM) professionals are required to have a valid license to prescribe controlled substances to a pharmacy. This is standard practice across many states to ensure the safe prescribing and dispensing of medications that have the potential for abuse. These licenses are state-specific and professionals must adhere to the regulatory requirements, which include obtaining a license from the state's medical or dental board and possibly a DEA number for the monitoring of controlled substances.