2026 USPS Exam 421 Window Clerk Practice – NEW Updated Version | Latest Actual Questions & Correct Answers | Guaranteed Pass A+

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2026 USPS Exam 421 Window Clerk Practice (NEW UPDATED VERSION) LATEST
ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND
ANSWERS)- GUARANTEED PASS A+ UPDATED 2026

End to end process to ensure mail is collected, distributed and delivered the type of clock the
usps runs on - CORRECT ANSWER 24 hour clock



QUESTION :Items sent within the US APO, FPO, UN, and its territories and possessions. -
CORRECT ANSWER Domestic mail



QUESTION :sets forth the policies, regulations and procedures governing domestic mail -
CORRECT ANSWER DMM- Domestic Mail Manual



QUESTION :sets forth policies, regulations, and procedures governing international mail -
CORRECT ANSWER IMM- International Mail Manual



QUESTION :contains policies and procedures for administrative ad support functions within the
postal service - CORRECT ANSWER ASM- Administrative Support Manual



QUESTION :all manuals are found on line via? - CORRECT ANSWER Policy Net



QUESTION :Guarantees overnight or next day delivery
$100 insurance and

free tracking - CORRECT ANSWER Express Mail



QUESTION :Premier Shipping service of the USPS - CORRECT ANSWER Express Mail



QUESTION :°Fast and affordable
°max 70lbs
°$50 insurance another premier shipping service of the USPS

°2-3 DAYS delivery - CORRECT ANSWER Priority Mail




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QUESTION :Bulk mail usually handled at distribution centers - CORRECT ANSWER
Parcel Select



QUESTION :Merchant pays postal fee returning merchandise bulk parcel return product -
CORRECT ANSWER Parcel Return Services



QUESTION :-First class mail
-Periodicals
-Standard mail
-Package services mail
-standard post(retail mail, books)
-media mail(books, film, manuscripts, sound recordings, computer media
-library mail

-Extra services - CORRECT ANSWER Mailing services



QUESTION :Proof of Mailing w/ Certificate of Mailing and Certified Mail
Protection in transit with Insured mail and Registered mail
Confirmation of Delivery with COD
Delivery Confirmation
Signature Confirmation
Restricted Delivery
Return Receipt and Return Return Receipt of Merchandise

Merchandise Return - CORRECT ANSWER Extra Services



QUESTION :proof of mailing uses PS Form 3800 - CORRECT ANSWER Certified Mail



QUESTION :-PS Form 3813(black) $200 or less, no signature of receipt

-PDT Form 3813-p(blue) $200 to $5000, requires signatures - CORRECT ANSWER
Insured Mail



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QUESTION :Provides date and time of delivery, free when you purchase Priority mail now
called USPS Tracking - CORRECT ANSWER Delivery Confirmation



QUESTION :POM - CORRECT ANSWER Postal Operations Manual



QUESTION :Official Source for updates and updated bi-weekly - CORRECT ANSWER
Postal bulletin


QUESTION :Does this package contain anything liquid, fragile, potentially hazardous' such
as/like perfume or lithium batteries? - CORRECT ANSWER 6 Part of HAZMAT question



QUESTION :Tells you when and how to display the POW flag - CORRECT ANSWER
Postal Bulletin



QUESTION :POW - CORRECT ANSWER Prisoner of War



QUESTION :Bears only stamps as postage weights more than 13 oz and was not excepted at
retail counter. - CORRECT ANSWER Anonymous Mail



QUESTION :PVI - CORRECT ANSWER Postage Validation Imprinter



QUESTION :AMU - CORRECT ANSWER Anonymous Mail Unit



QUESTION :DDD1 - CORRECT ANSWER Weighs less than 13 oz



QUESTION :DDD2 - CORRECT ANSWER Weighs more than 13 oz



QUESTION :Magazines, newspaper, must be printed at least 4x's times a year from a
creditable organization - CORRECT ANSWER Periodicals



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QUESTION :Parcel post, bonded printed matter media mail, library mail - CORRECT
ANSWER package services



QUESTION :printed matter weighs less than 16 oz must pay annual presort fee min. of 200
pieces or over 50 lbs - CORRECT ANSWER Standard Mail



QUESTION :can be used for gifts weighs up to 70lbs measures max of 130in price based on
weigh distance and shape - CORRECT ANSWER Parcel Post



QUESTION :Delivery time 2-3 days( not guaranteed ) - CORRECT ANSWER Priority Mail



QUESTION :Delivery time 1-2 days ( overnight and next day ) * Guaranteed - CORRECT
ANSWER Express mail ( Priority Mail Express )



QUESTION :Letters size max - CORRECT ANSWER 6 1/8in in height and 11 1/2in in
length max 1/4in in thickness



QUESTION :Flats size max - CORRECT ANSWER 15in in length and 12in in height and
3/4in in thickness



QUESTION :Machinable Parcels - CORRECT ANSWER min 3in max 17in weight 6 oz
min and 25lbs max



QUESTION :Rolls that are longer than machinable parcels - CORRECT ANSWER
Irregular Parcels



QUESTION :How many zones - CORRECT ANSWER 8



QUESTION :effects zones 1-4 piece weighs less than 20lbs but longer than 84in and is
charged the 20lb price - CORRECT ANSWER Balloon Price



practice exam 2026