USPS Regulations

  • 2 Posts
  • 1 Sections
  • 1 Types
Definitions
Nonstandard Mail
Nonstandard Mail Postal Services Mail Classification Additional Postal Charges USPS Regulations Mail Dimensions First-Class Mail Third-Class Mail
Nonstandard mail refers to first-class or single-piece third-class mail that weighs less than one ounce but exceeds established dimensions. Such mail incurs an additional charge.
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Definitions
Unmailable Matter
Unmailable Matter USPS Regulations Postal Service Restrictions Shipping Guidelines Hazardous Materials Prohibited Items Mail Security Public Safety
Unmailable matter refers to materials that the U.S. Postal Service (USPS) cannot accept or transport due to restrictions on size, weight, or content.
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Accounting Terms Lexicon

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