US address formatting guidelines
Reduce delivery issues with standardized address lines.
Guidelines
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Shipping glossary (A–Z)
Plain‑English definitions with examples and links.
ReferenceShipping zones explained
How carriers define distance-based pricing and what it means for you.
ReferenceDIM divisor by carrier explained
Know which divisor applies and how it affects price.
ReferenceSignature confirmation options: USPS, UPS, FedEx
Adult signature, direct signature, and standard options by carrier.
ReferenceWhat affects shipping price? The full list of factors
Weight, dimensions, zones, surcharges, and address type.
ReferenceDeclared value vs insurance: what’s the difference?
Coverage terms and claim requirements by carrier.