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Quick Service Guide 430
First-Class Mail—Presorted Parcels
April 17, 2011
Physical Standards (401)
Maximum weight: 13 ounces, except for commercial plus presorted machinable parcels which must weigh less than 16 ounces.
For an overview of the physical standards for commercial parcels, see Quick Service Guide 401.
Prices and Fees (433.1.0)
There are two categories of prices for First-Class Mail commercial parcels: commercial base and commercial plus. For a complete list of commercial First-Class Mail prices, see Notice 123–Price List.
Annual presort mailing fee applies.
First-Class Mail is required for personal correspondence, handwritten or typewritten material, and bills or statements of account. It may also be used for any mailable item including advertisements and lightweight merchandise.
Eligibility Standards (433.3.0)
Mailings of 500 or more addressed pieces, sorted and marked as described below. All pieces must meet the physical standards for parcels (401).
Each piece must include a complete delivery address with correct ZIP Code or ZIP+4 code.
Addresses on all pieces must be updated within 95 days before mailing through a USPS-approved address update method (e.g., ACS, NCOALink, FASTforward, or the appropriate ancillary service endorsement except Forwarding Service Requested, under 507.1.5). For an overview of the Move Update standard, see Quick Service Guide 230a.
A certified process must be used at least once a year to ensure accuracy of 5-digit ZIP Codes.
Unless prepared in 5-digit/scheme sacks or paid at single-piece prices, presorted parcels are subject to a surcharge if they:
Postage Payment and Documentation (434)
IBI meter or PC Postage (604.3.0), or permit imprint (604.5.0) for parcels mailed at commercial base prices. Permit imprint only for parcels mailed at commercial plus prices.
Additional standards apply to mailings of nonidentical-weight pieces.
Mail Preparation (435)
Marking on each piece in the postage area: “Presorted (or PRSRT) First-Class.” For optional locations, see 402.2.5.
Parcels claiming commercial base prices must also be marked: "CommercialBasePrice"; except for parcels mailed with permit imprint postage. All parcels claiming commercial plus prices must be marked "CommercialPlusPrice." See 402.2.4 for allowable abbreviations.
Enter and Deposit (436)
Mailing entered at an acceptance point designated by USPS.