Centralized delivery is the Postal Service’s preference for new addresses, whether residential or commercial. The customer is responsible for keeping the approach to his or her mailbox and adjacent area clear to facilitate delivery. You may provide curbside delivery only with prior approval from the Postal Service. Place curbside mail receptacles approved by the Postal Service where they protect the mail, can be safely and conveniently serviced by carriers without leaving their vehicles, and can be reasonably and safely accessed by customers. These receptacles must be on the right-hand side of the road in the direction of travel when required by traffic conditions, or when driving on the left-hand side of the road to reach the mail receptacle would violate traffic laws.