USPS slows first-class mail delivery starting in October

USPS increases delivery time on first class mail

Postal Cuts to Slow Delivery of First-class Mail

First-class packages may take longer to mail through USPS

USPS to slow down First-Class delivery to help speed up Priority Mail

Is first-class USPS delivery slower? We tested it to find out.

USPS test: We mailed 4 packages with GPS trackers to see how quickly they got there

How Long Does First Class Mail Take

USPS adding one to two days onto first class delivery estimates

Postal cuts to slow delivery of first-class mail

USPS mail delivery times

How USPS Sorts Mail

Complete EBAY Shipping Series: Episode 1: First Class Packages The 10 Things You Need To Know!

Late arrival: Data shows around 40% of first-class mail arrived on time in DMV in late December

HOW TO ADDRESS A PACKAGE

First Class vs Priority Mail

So You Think You Can Be A Mail Carrier? | USPS to Conduct One-Day Hiring Blitz Across San Diego Coun

USPS to eliminate first-class tier of mail

USPS First Class Mail Is Changing To USPS Ground Advantage

How To Ship USPS International Packages and Fill Out a Customs Form