Citing cold, USPS cancels Wednesday mail delivery in Minnesota, western Wisconsin – Twin Cities

Talking Points: Lawmakers tackling USPS mail delays, issues - CBS Minnesota

USPS Is Warning Customers About New Winter Mail Delays

A Guide to USPS Mailbox Regulations

United States Postal Service An American History, PDF, United States Postal Service

USPS Suspends Mail Delivery In Parts Of 10 States Because Of Dangerous Polar Vortex : NPR

USPS Regulator Throws Cold Water on Lawmakers' Concerns Over DeJoy's Authority for Big Price Hikes - Government Executive

Delivery delays: Critics of new Postal Service policy say it could slow mail delivery, especially in rural Oregon, Eastern Oregon

USPS Is Suspending Services in These Places, Effective Immediately

Report on Minnesota postal problems will be out soon, but solutions may be elusive - MinnPost

Postal Bulletin 22086 - October 3, 2002 - USPS.com® - About

USPS Halts Mail Delivery In Minnesota Due To Polar Vortex - CBS Minnesota