Final answer:
A Minnesota broker must notify the Minnesota Department of Commerce within 30 days of an address change to comply with state regulations.
Step-by-step explanation:
The answer to the question regarding where and by when a Minnesota broker must provide notification of an address change is: A Minnesota broker must provide notification to the Minnesota Department of Commerce within 30 days of the address change. This is required in order to maintain accurate and up-to-date licensing information, which is necessary under state regulations. Different states have their own requirements, such as California allowing voters to update their address through the Department of Motor Vehicles, but for a Minnesota broker specifically dealing with a business address change, the Minnesota Department of Commerce is the correct entity to notify within the specified timeframe.