USPS Study Guide 2026
Everything you need to pass the USPS exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 USPS Exam Format at a Glance
📚 USPS Topics to Study (144)
✍️ Sample USPS Questions & Answers
1. A package using Priority Mail Flat Rate envelope is submitted weighing 72 lbs. What is the correct assessment?
Priority Mail Flat Rate envelopes have a 70 lb maximum weight; 72 lbs exceeds this limit regardless of the flat rate pricing.
2. A mail carrier notices that a package's Intelligent Mail barcode (IMb) has a missing digit in the routing code. What is the most likely consequence of this error?
A missing digit in the IMb routing code prevents automated sorting equipment from reading the destination, causing missorts or returns.
3. A tray label reads 'SCF 606' but the ZIP codes in the tray begin with 607. What type of error has occurred?
SCF 606 covers ZIP codes beginning with 606, so a tray of 607 ZIPs has been placed under the wrong sectional center facility label.
4. Original: '88-14 Northern Blvd, Queens, NY 11372'. Copy: '888-14 Northern Blvd, Queens, NY 11372'. The copy contains:
The street number '88-14' gained an extra '8' to become '888-14', which is an insertion error in the first part of the hyphenated number.
5. A sorter is working a mixed flat case and places a catalog addressed to 'PO Box 450' into a street-delivery carrier's case. What sorting rule was violated?
PO Box mail is separated from street delivery mail because PO Boxes are serviced at the post office counter, not by street carriers.
6. Compare the following number sequences and identify if there is an error: Left: 7204519386 Right: 7204519386
Both number sequences are identical with no errors to find.