DMM TOC > 100 Retail Letters, Cards, Flats, and Parcels > 120 Priority Mail123 Rates and Eligibility1.0 Priority Mail Rates and Fees1.1 ApplicationPriority Mail rates apply to pieces meeting the standards in 123. 1.2 Priority Mail Rate ApplicationExcept under 1.3, 1.4, and 1.5, Priority Mail rates are charged per pound; any fraction of a pound is rounded up to the next whole pound. For example, if a piece weighs 1.2 pounds, the weight (postage) increment is 2 pounds. The minimum postage amount per addressed piece is the 1pound rate. The Priority Mail rate up to 1 pound is based on weight only; rates for pieces weighing more than 1 pound are based on weight and zone. Other charges may apply. See Exhibit 1.3, Priority Mail Rates. 1.3 Minimum Rate for Parcels to Zones 14Parcels addressed for delivery to Zones 14 (including Local) that weigh less than 20 pounds but measure more than 84 inches (but not more than 108 inches) in combined length and girth are charged the applicable zone rate for a 20pound parcel (balloon rate). Exhibit 1.3 Priority Mail Rates
1.4 Dimensional Weight Rate for LowDensity Parcels to Zones 58Postage for parcels addressed for delivery to Zones 58 and exceeding 1 cubic foot (1,728 cubic inches) is based on the actual weight or the dimensional weight (as calculated in 1.4.1 or 1.4.2), whichever is greater. 1.4.1 Determining Dimensional Weight for Rectangular ParcelsFollow these steps to determine the dimensional weight for a rectangular parcel: a. Measure the length, width, and height in inches. Round off (see 604.7.0) each measurement to the nearest whole inch. b. Multiply the length by the width by the height. c. If the result exceeds 1,728 cubic inches, divide the result by 194 and round up (see 604.7.0) to the next whole number to determine the dimensional weight in pounds. 1.4.2 Determining Dimensional Weight for Nonrectangular ParcelsFollow these steps to determine the dimensional weight for a nonrectangular parcel: a. Measure the length, width, and height in inches at their extreme dimensions. Round off (see 604.7.0) each measurement to the nearest whole inch. b. Multiply the length by the width by the height. c. Multiply the result by an adjustment factor of 0.785. d. If the final result exceeds 1,728 cubic inches, divide the result by 194 and round up (see 604.7.0) to the next whole number to determine the dimensional weight in pounds. e. If the dimensional weight exceeds 70 pounds, the parcel pays the 70pound rate. 1.5 FlatRate Boxes and EnvelopesAny amount of material may be mailed in a USPSproduced Priority Mail flatrate box or flatrate envelope. When sealing a flatrate box or flatrate envelope, the container flaps must be able to close within the normal folds. Tape may be applied to the flaps and seams to reinforce the container, provided the design of the container is not enlarged by opening the sides and the container is not reconstructed in any way. 1.5.1 FlatRate Boxes—Rate and EligibilityEach USPSproduced Priority Mail flatrate box is charged $8.95, regardless of the actual weight of the piece or its destination. Only USPSproduced flatrate boxes are eligible for the flatrate box rate. 1.5.2 FlatRate Envelopes—Rate and EligibilityEach USPSproduced Priority Mail flatrate envelope is charged $4.60, regardless of the actual weight of the piece or its destination. Only USPSproduced flatrate envelopes are eligible for the flatrate envelope rate. 1.6 Rates for Keys and Identification Devices
1.7 Keys and Identification DevicesKeys and identification devices (e.g., identification cards or uncovered identification tags) that weigh more than 13 ounces but not more than 1 pound are returned at the 1pound Priority Mail rate plus the fee. Keys and identification devices weighing more than 1 pound but not more than 2 pounds are mailed at the 2pound Priority Mail rate for zone 4 plus the fee. The key or identification device must bear, contain, or have securely attached the name and complete address of a person, organization, or concern, with instructions to return the key or identification device to that address and a statement guaranteeing payment of postage due on delivery. 1.8 Pickup on Demand Fee507.5.0, Pickup on Demand Service). 1.9 Determining SinglePiece WeightTo determine singlepiece weight in any mailing of nonidenticalweight pieces, weigh each piece individually. To determine singlepiece weight in a mailing of identicalweight pieces, weigh a sample group of at least 10 randomly selected pieces and divide the total sample weight by the number of pieces in the sample. Express all singlepiece weights in decimal pounds rounded off to four decimal places. 1.10 Computing Postage—Priority MailDetermine singlepiece weight increment for each piece and affix postage to each piece under 124.1.2, Affixing Postage—SinglePiece Rate Mailings (as applicable) or, for permit imprint mailings, multiply the number of addressed pieces at each rate increment by the corresponding postage rate. 2.0 Basic Eligibility Standards for Priority Mail2.1 Definition of Priority MailPriority Mail is FirstClass Mail weighing more than 13 ounces and, at the mailer's option, any other mailable matter weighing 13 ounces or less. Priority Mail rates are based on zone and weight. The maximum weight is 70 pounds, except for APO and FPO mail subject to 703.2.0, Overseas Military Mail, and 703.4.0, Mail Sent by U.S. Armed Forces, and Department of State mail subject to 703.3.0. 2.2 Service ObjectivesAll Priority Mail receives expeditious handling and transportation. The USPS follows uniform guidelines for distributing and delivering mail but does not guarantee delivery within the specified time. Local postmasters can provide more information. 2.3 Matter Closed Against Postal InspectionMatter closed against postal inspection includes FirstClass Mail (including Priority Mail) and Express Mail. The USPS may open mail other than FirstClass Mail or Express Mail to determine whether the proper rate of postage is paid. Material wrapped or packaged so that it cannot be examined easily or examined without destruction or serious damage is closed against postal inspection and is charged the appropriate FirstClass Mail or Express Mail rate. 3.0 Content Standards for Priority Mail3.1 EligibilityAll mailable matter may be sent as Priority Mail, except matter prohibited by standards (e.g., certain hazardous materials). 3.2 Matter Required to be Mailed as FirstClass MailMailers have the option to use Express Mail service for mailpieces required to be mailed as FirstClass Mail or Priority Mail. Unless Express Mail is used, Priority Mail rates are required for a mailpiece that weighs more than 13 ounces when the mailpiece contains matter that must be mailed as FirstClass Mail. Complete descriptions of matter requiring the use of FirstClass Mail are provided in 133.3.0.
