UPS Authorized Shipping Outlet on C Street in downtown San Diego provides walk-in package drop-off and outbound shipping between Sixth and Seventh Avenues in the Gaslamp Quarter corridor. Commercial tenants in surrounding office buildings route certified-mail dispatches through the outlet, including insurance policy documents and certificates of liability coordinated with providers like Hultz Insurance. The C Street location offers all standard UPS service tiers from Ground to Next Day Air Early, with packages scanned into the UPS network at each scheduled driver pickup. Prepaid returns from online retailers are accepted without charge, making the outlet a processing point for the Gaslamp Quarter's residential population in the surrounding mid-rise buildings. Real-estate closing packages — title reports, escrow instructions, and transfer-disclosure statements — ship through the outlet from nearby brokerages like AVENU Realty Group when electronic signatures are not permitted. Each accepted parcel undergoes dimensional-weight calculation using UPS's published DIM factor of 139 for domestic and 166 for international shipments to determine billable weight.