A row of outdoor USPS cluster box units (CBUs) in light gray metal, doors closed and aligned perfectly, each compartment labeled with crisp black unit numbers. The CBUs stand on a clean concrete pad at a Sunset district Miami apartment complex, framed by tropical landscaping with manicured hedges and palm fronds at the edges of the frame. Late afternoon golden-hour sunlight creates warm highlights on the brushed metal surfaces and soft, elongated shadows on the ground. The sky is clear and blue, reflecting subtly on the metal doors. Shot in photographic realism from a slightly low, three-quarter angle, the composition uses the rule of thirds to create a calm, professional, instructional mood ideal for explaining how CBUs work on a city route.

Carrier Guides

Step‑by‑step USPS city carrier how‑tos on routes, mail flow, safety, and staying on time.

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Browse guides by route type, station etiquette, scanners and tech, or safety and time management. Start with basics, then dive deeper, and visit About to see who’s sharing these lessons.

A well-maintained USPS Long Life Vehicle parked curbside along a quiet Miami residential street, its white body clean and reflective, with crisp red and blue striping and a clearly visible USPS logo. The sliding door is open to reveal neatly stacked trays of sequenced mail and parcels arranged in labeled tubs on metal shelves. Lush green lawns, pastel stucco homes, and a glimpse of palm trees line the route in the background, softly blurred. Bright, diffused mid-morning sunlight creates clear visibility inside the vehicle without harsh shadows. Captured in photographic realism from a slightly elevated side angle, the scene feels professional, calm, and instructional, emphasizing route organization and vehicle setup for new city carriers.