The specific duration within which you must contact the proper authority if you move can vary depending on your location and local regulations. In many places, you are typically required to update your address with the proper authorities, such as the Department of Motor Vehicles (DMV) or a similar agency, within a certain timeframe after moving. This timeframe can vary by jurisdiction, but it is often within a range of 10 to 30 days after your move.
To get the precise information about the deadline for updating your address with the proper authority in your area, it's best to check the official website of your local DMV or contact them directly. They will provide you with the most up-to-date and accurate information regarding the timeframe and any specific requirements for notifying them of your address change. Following these requirements is essential to ensure that your driver's license, vehicle registration, and other important documents remain current and accurate.