What should a CDL holder do if they move to a new address?

Answer: B — Notify the DMV within a month

A CDL holder is required to notify the Department of Motor Vehicles (DMV) of any change in address to ensure that their records are current and that they receive important information regarding their driving privileges, vehicle registration, and any legal notices. The law stipulates that this notification should occur within a month of the move. This requirement helps maintain accurate records, facilitates communication from the DMV, and avoids potential legal issues related to driving with outdated information. The other options either do not fulfill this legal requirement or suggest inadequate actions regarding the update process. Ignoring the change of address can lead to not receiving critical updates or documents. Changing the address online exclusively may not conform to all states' requirements, and submitting a new application for the CDL is unnecessary when a simple update is sufficient to maintain the current license validity.