Postal Regulations / References
Postal Regulations/Standards
The following documents include important information about Postal Regulations and mailbox design standards:
UNITED STATES
STD-4C USPS Specification Overview
STD-4C Federal Register Rules and Regulations
STD-4B USPS Standards (superseded by STD-4C)
CANADA
Canada Post Mailbox Regulations
Canada Post Delivery Planning Standards
USPS Approved Products
The following documents include lists of USPS Approved products and their manufacturers:
Postal Bulletin - May 2011 (full document)
USPS Approved Mailbox Products 2011-2012(all)
USPS Approved Cluster Box Unit Products 2011 - 2012
USPS Approved Std-4C Mailbox Products 2011 - 2012
USPS Approved Horizontal Mailbox Products 2011-2012
USPS Approved Mail Receptacles List
Postal References
The following documents include additional Postal References for USPS Delivery:
STD-4B+ and STD-4C Selection Guide
Postal Locator
The following US Postal Service website will aide in searching for local postal authorities:
