Security and Efficiency of the New Carrier Scanners and Electronic Locks

The U.S. Postal Service’s Mobile Delivery Device – Technology Refresh (MDD‑TR) is a handheld mobile scanning device used by Postal Service employees to improve real-time delivery scanning capabilities. As a part of the Delivering for America plan, the Postal Service committed to modernizing the MDD‑TRs to improve employee efficiency, increase security of mail and package delivery, and ensure employee safety. Select MDD‑TRs also use electronic lock (eLock) technology as a part of a multi-factor authentication requirement to open mail collection boxes and cluster box units — adding another level of security to prevent mail from being stolen. Since 2023, the devices have received software updates improving carrier security and efficiency through address edits, global positioning system, and hazard maps. These improvements support the Postal Service’s commitment to creating a safe and secure work environment.