DMM TOC > 400 Discount Parcels > 440 Standard Mail|
Presort is the process by which a mailer prepares mail so that it is sorted to at least the finest extent required by the standards for the rate claimed. Generally, presort is performed sequentially, from the lowest (finest) level to the highest level, to those destinations specified by standard and is completed at each level before the next level is prepared. Not all presort levels are applicable in all situations. [M011.1.1]
a. General. A mailing is a group of pieces within the same class of mail and, except for certain parcel rates, the same processing category that may be sorted together and/or presented under a single minimum volume mailing requirement under the applicable standards. Generally, types of mail that follow different flows through the postal processing system and mail for each separate class and subclass must be prepared as a separate mailing. Other specific standards may define whether separate mailings may be combined, palletized, reported, or deposited together.
b. Standard Mail. Except as provided in 443.3.4, Residual Volume Requirement, the types of Standard Mail listed below may not be part of the same mailing.
5. Except as provided by standard, Regular mail may not be in the same mailing as Nonprofit mail, and Enhanced Carrier Route mail may not be in the same mailing as Nonprofit Enhanced Carrier Route mail.
c. 5‑digit scheme (pallets and sacks) for Standard Mail parcels: the ZIP Code in the delivery address on all pieces begins with one of the 5‑digit ZIP Code zones processed by the USPS as a single scheme, as shown in L606.
d. 3‑digit: the ZIP Code in the delivery address on all pieces begins with the same three digits (see L002, Column A).
e. Origin/optional entry 3‑digit(s): the ZIP Code in the delivery address on all pieces begins with one of the 3‑digit prefixes processed at the sectional center facility (SCF) in whose service area the mail is verified/entered. Subject to standard, a separation is required for each such 3‑digit area regardless of the volume of mail.
f. SCF: the separation includes pieces for two or more 3‑digit areas served by the same sectional center facility (SCF) (see L005), except that, where required or permitted by standard, mail for a single 3‑digit area may be prepared in an SCF separation when no mail for other 3‑digit ZIP Code areas is available. For pallets, the SCF sort may include mail for a single 3‑digit ZIP Code area.
g. Origin/optional entry SCF: the separation includes bundles for one or more 3‑digit areas served by the same sectional center facility (SCF) (see L002, Column C, or L005) in whose service area the mail is verified/entered. Subject to standard, this separation is required regardless of the volume of mail.
h. ADC: all pieces are addressed for delivery in the service area of the same area distribution center (ADC) (see L004).
k. Residual pieces/bundles/sacks contain material remaining after completion of a presort sequence. Residual mail lacks the volume set by standard to require or allow bundle preparation to a particular destination, and usually does not qualify for a presort rate. Residual mail is also referred to as nonqualifying or working mail. [M011.1.2]
a. Pieces refers to individually addressed mailpieces. This definition also applies when pieces is used in eligibility standards. Quantities indicated for optional or required sortations always refer to pieces unless specifically excepted.
c. A 5‑digit scheme sort for Standard Mail parcels yields 5‑digit scheme sacks or pallets for those 5‑digit ZIP Codes listed in L606 and 5‑digit sacks or pallets for other ZIP Codes. The 5‑digit ZIP Codes in each scheme are treated as a single presort destination subject to a single minimum volume (if required), with no further separation by 5‑digit ZIP Code required. Sacks or pallets prepared for a 5‑digit scheme destination that contain pieces for only one of the schemed 5‑digit ZIP Codes are still considered 5‑digit scheme sorted and are labeled accordingly. The 5‑digit scheme sort is always optional, including when 5‑digit sortation is required for rate eligibility. The 5‑digit scheme sort need not be used for all possible 5‑digit scheme sorts.
d. An origin 3‑digit (or origin 3‑digit scheme) sack contains all mail (regardless of quantity) for a 3‑digit ZIP Code (or 3‑digit scheme) area processed by the SCF in whose service area the mail is verified. If more than one 3‑digit (or 3‑digit scheme) area is served, as indicated in L005, a separate tray/sack must be prepared for each.
e. The required at [quantity] instruction (e.g., "required at 10 pieces") means that the particular unit must be prepared for the corresponding presort level whenever the specified quantity of mail is reached or exceeded. Bundles and containers may contain more than the specified required at quantity up to the applicable maximum physical size. Subject to applicable rate eligibility standards, smaller quantities may be prepared only if permitted. Where specified by standard, required preparation applies only if the mailer chooses to qualify for the corresponding rate.
f. The optional at [quantity] instruction means that the particular unit may be prepared for the corresponding presort level whenever the specified quantity of mail is reached or exceeded. Bundles or containers may contain more than the specified optional at quantity up to the applicable maximum physical size. Smaller quantities may be prepared only if permitted by applicable rate eligibility standards. Standards for quantities with which preparation is optional are often followed by standards for larger quantities with which preparation is required.
g. Entry [facility] (or origin [facility]) refers to the USPS mail processing facility (e.g., "entry BMC") that serves the post office at which the mail is entered by the mailer. If the post office where the mail is entered is not the one serving the mailer's location (e.g., for plant‑verified drop shipment), the post office of entry determines the entry facility. Entry SCF includes both single‑3‑digit and multi‑3‑digit SCFs. Entry BMC includes subordinate ASFs unless otherwise specified.
h. The group pieces instruction means the pieces are to be sorted together as if to be bundled but not actually secured into a bundle. Bundle labels and other bundle identification methods may be used for unsecured groups of pieces as permitted by standard.
i. A bundle is a group of addressed pieces secured together as a unit. The presort process considers the total number of pieces available for the particular presort destination and assembles them into groups meeting applicable volume and size standards. When the standards for the rate claimed require securing the pieces in each group together, the result is a bundle. The term bundle does not apply to unsecured groups of pieces. Bundle preparation is described in 2.0.
j. A "logical" presort destination represents the total number of pieces that are eligible for a specific presort level based on the required sortation, but which might not be contained in a single bundle or in a single container (i.e., sack, pallet) due to applicable preparation requirements or the size of the individual pieces. For example, there may be 42 mailpieces for ZIP Code 43112 forming a Standard Mail "logical" 5‑digit bundle, and they are prepared in three physical 5‑digit bundles because of the applicable weight and height restrictions on bundles. For pallets, 2,800 pounds of mail may be destined to an SCF destination, and these would form the "logical" SCF pallet, but the mail is placed on two physical SCF pallets each weighing 1,400 pounds because of the 2,200 pound maximum pallet weight requirement. [M011.1.3]
A bundle is a group of addressed pieces secured together as a unit. The presort process considers the total number of pieces available for the particular presort destination and assembles them into groups meeting applicable volume and size standards. When the standards for the rate claimed require securing the pieces in each group together, the result is a bundle. The term bundle does not apply to unsecured groups of pieces. Bundle preparation is described in 2.0. [M011.1.3z]
Except as noted in 2.3, all pieces in a bundle must be "faced" (i.e., arranged with the addresses in the same read direction), with an address visible on the top piece. [M020.1.1]
c. When counter‑stacking, pieces must all have addresses facing up and be divided into no more than four approximately equal groups, with each group rotated 180 degrees from the preceding and succeeding group(s); prepare as few groups as possible to create a bundle of uniform thickness.
e. When pieces are nonuniform in thickness because they are thicker in the center instead of along an edge or corner, counter‑stacking will generally not result in a bundle of uniform thickness (i.e., a football‑shaped bundle would be created). Instead of counter‑stacking such pieces, limit the height (thickness) of the bundle to 3 to 6 inches to ensure the bundle will stay together during normal transit and handling. [M020.1.2]
b. Bundles up to 1 inch in height (thickness) must be secured with appropriate banding, placed at least once around the girth (narrow dimension), or with shrinkwrap. Bundles over 1 inch in height must be secured with at least two bands (plastic bands, rubber bands, or twine/string), one around the length and one around the girth; or with shrinkwrap; or with shrinkwrap plus one or two bands.
d. A bundle that exceeds the maximum prescribed height by less than the thickness of a single piece meets the standard (e.g., if a glossy piece is 0.625 (5/8) of an inch thick, five pieces may be secured in a bundle 3.125 inches high; if a piece with uncoated cover stock is 0.75 (3/4) of an inch thick, 11 pieces may be secured in a bundle 8.25 inches high).
e. Bundles of pieces with covers of coated stock that are not individually enclosed in a mailing wrapper (e.g., magazines or catalogs with glossy covers not individually enclosed in an envelope, uncoated paper wrapper, or plastic wrapper (polybag)) are subject to these conditions:
1. Except as noted in 2.4e2, bundles must not exceed 3 inches in height (thickness).
2. Bundles of such pieces secured with shrinkwrap plus one or two plastic straps, or with at least two plastic straps, one around the length and one around the girth, must not exceed 6 inches in height (thickness).
1. "Uncoated stock" also refers to pieces with coated covers that are individually enclosed in a cover or mailing wrapper of uncoated stock such as an envelope, sleeve, protective cover, partial wrapper, or polybag and pieces with outer surfaces composed of material other than paper (e.g., plastic, cloth, fiberboard, or metal).
b. Bundles must be secured with banding, shrinkwrap, or shrinkwrap plus one or more bands. Banding includes plastic bands, rubber bands, twine/string, and similar material. Use of wire or metal banding is not permitted.
d. Except under 705.8.5.11, Bundles on Pallets, bundles over 1 inch high (thick) must be secured with at least two bands or with shrinkwrap. When double banding is used to secure bundles, it must encircle the length and girth of the bundle at least once. Additional bands may be used if none lies within 1 inch of any bundle edge.
For mail prepared with a simplified address, all pieces for the same post office must be prepared in bundles of 50 when possible. If bundles of other quantities are prepared, the actual number of pieces must be shown on the facing slip attached to show distribution desired (e.g., rural route, city route, post office boxholder). Bundles must be secure and stable subject to specific weight limits in 705.8.0 if placed on pallets, and specific weight and height limits in 2.4 if placed in sacks. [M020.2.3]
a. A greater number of pieces would exceed the maximum physical size for a bundle and the total number of pieces for that presort destination meets the minimum volume standard (e.g., 30 pieces are available to meet a 10‑piece minimum, but a bundle of eight pieces is 6 inches thick).
b. The pieces constitute the "last bundle" for a presort destination and previously prepared bundles met the applicable minimum volume standard (e.g., 505 pieces prepared in 10 50‑piece bundles and one five‑piece bundle). [M020.1.7]
Unless excepted by standard, the presort level of each bundle (other than carrier route bundles) must be identified either with an optional endorsement line under 708.7.0 or with a barcoded pressure‑sensitive bundle label. Bundle labels must not be obscured by banding or shrinkwrap. The following colors and presort characters apply to bundle labels:
An optional endorsement line (OEL) may be used to label bundles instead of applying pressure‑sensitive bundle labels or facing slips to the top piece under 708.7.0. [M013.1.1]
Bundles for individual carrier routes, rural routes, highway contract routes, post office box sections, or general delivery units must be prepared with facing slips under 2.0, optional endorsement lines under 708.7.0, or carrier route information lines under 708.6.0. These standards apply to Enhanced Carrier Route Standard Mail mailings. Carrier route information lines may be on all pieces in a mailing, regardless of presort level. [M014.1.0]
Mailings must be prepared in white sacks. Containers for Customized MarketMail are specified in 705.1.0. The following additional standards apply:
a. Palletized mail is also subject to 705.8.0.
b. A postmaster may authorize nonpostal containers for a small‑volume presorted mailing if the mailing weighs no more than 20 pounds, consists primarily of mail or bundles of mail for local ZIP Codes, and requires no USPS transportation for processing. [M033.1.2]
Only sack labels may be used for sacks; only tray labels may be used for trays. Machine‑printed labels (available from the USPS) ensure legibility. Legible hand‑printed labels are acceptable. Illegible labels are not acceptable. [M031.1.1]
a. Placement. Line 1 must be the first visible line on the label. It must be completely visible and legible when placed in the label holder. This visibility is ensured if the top of this line is no less than 1/8 (0.125) inch below the top of the label when the label is cut and prepared.
b. Information. Line 1 must contain only the information specified by standard, including the appropriate destination facility prefix (e.g., "ADC"). Two zeros may follow the 3‑digit ZIP Code prefix required by labeling standards (e.g., 223 as 22300).
c. Overseas Military Mail. On 5‑digit sacks and trays for overseas military destinations, Line 1 shows, from left to right, "APO" or "FPO," followed by "AE" (for ZIP Codes within the ZIP Code prefix range 090‑098), "AA" (for ZIP Codes within the 3‑digit ZIP Code prefix 340), or "AP" (for ZIP Codes within the ZIP Code prefix range 962‑966), followed by the destination 5‑digit ZIP Code of the mail in the sack or tray. [M031.1.2]
a. Placement: Line 2 must be the second visible line on the label. This line must show the class and processing category of the mail in the sack and other information as specified by standards. [M031.1.3]
Line 3 (office of mailing or mailer information line) must be the bottom line of required information and must show either the city and state of the entry post office or the mailer's name and the city and state of the mailer's location. It is recommended that the mailer's name also appear with the city and state of the entry post office. [M031.1.4]
Lines 1 and 3 may contain abbreviated information if such abbreviations are those in the USPS City State Product or in Publication 65, National Five‑Digit ZIP Code and Post Office Directory. [M031.1.6]
b. Mailer‑produced barcoded labels must meet the standards in 708.6.0.
b. Reflectance: minimum reflectance requirements in 708.6.3.3i., Barcode.
All mailings and all pieces in each mailing at Regular Standard Mail and Nonprofit Standard Mail nonautomation rates are subject to specific preparation standards in 5.3, Preparation of Machinable Parcels, and 5.4, Preparation for Irregular Parcels, and to these general standards:
a. All pieces must meet the standards for basic eligibility in 443.2.0 through 443.4.0 in Rates and Eligibility and specific eligibility in 443.5.0. Nonprofit Standard Mail must meet the additional eligibility standards in 703.1.0.
c. All pieces must meet the applicable general preparation standards in 1.0 through 4.0, 708.7.0, Optional Endorsement Lines (OEL), 708.6.0, Barcoding Standards for Container Labels, and 708.6.0, Barcoding Standards for Container Labels.
e. Sortation determines rate eligibility as specified in 443.5.0, Additional Eligibility Standards for Presorted Standard Mail Parcels. [M610.1.1]
Subject to the marking standards in 402.2.0, Placement and Content of Markings, regular Standard Mail pieces must be marked "Presorted Standard" (or "PRSRT STD") and Nonprofit Standard Mail pieces must be marked "Nonprofit Organization" (or "Nonprofit Org." or "Nonprofit"). Regular and Nonprofit Standard Mail pieces must not be marked "ECRLOT," "ECRWSH," "ECRWSS," or "Single‑Piece" (or "SNGLP"). [M610.1.1c1]
5‑digit scheme (optional) and 5‑digit sacks containing both machinable and irregular parcels must be prepared under 5.4.2, Bundling and Labeling. Any 5‑digit scheme (optional) and all possible 5‑digit sacks must be prepared in a mailing including pieces claimed at the 3/5 rate. If any 5‑digit scheme (optional) and all possible 5‑digit sacks are not prepared when there are 10 pounds or more of mail for that destination, the 3/5 rate may not be claimed for any part of the mailing. If the scheme sort is used, it need not be done for all 5‑digit scheme destinations. [M610.6.1]
a. 5‑digit scheme (optional); 10‑pound minimum except under 5.3.1; labeling:
1. Line 1: L606, Column B.
b. 5‑digit (optional); 10‑pound minimum except under 5.3.1; labeling:
1. Line 1: city, state, and 5‑digit ZIP Code destination of pieces, preceded for military mail by correct prefix under 4.0, Sack Labels.
1. Line 1: "MXD" followed by L601, Column B information for BMC serving 3‑digit ZIP Code prefix of entry post office.
[02-03-05] Except as provided in 5.4.3, Bundling Exceptions, and 5.4.5, Loose Packing, bundling is required before sacking. A bundle must be prepared when the quantity of addressed irregular parcels for a required presort level reaches the required minimum bundle size. Irregular parcels of nonuniform thickness must be prepared in accordance with 5.4. Irregular parcels of uniform thickness (e.g., printed publications) and exceeding either 15 inches in length or 12 inches in height also must be bundled and sacked in accordance with 5.4 using the alternate labeling lists as specified in 5.4.8, Sacking and Labeling, or placed on pallets under 705.8.0. Smaller volumes are not permitted except for mixed ADC bundles and bundles prepared under 5.4.4, Commingling Irregular Parcel Mailings. [M610.5.1]
c. The parcels are in a 5‑digit scheme or 5‑digit sack containing both machinable and irregular parcels. Sacks containing both machinable and irregular parcels may not be prepared to other presort levels. [M610.5.3]
Business Mailer Support (BMS) (see 608.8.1 for address) may authorize the commingling of several permit imprint mailings of irregular parcels to achieve a finer presort if the payment of proper postage can be documented. BMS may waive minimum quantity standards for preparation of 5‑digit and 3‑digit presort destination bundles if doing so results in a finer preparation of at least 50% of the mail. [M610.5.4]
District managers may authorize loose packing of unbundled irregular parcels to fill Number 3 sacks if no parcels in a sack would be more finely sorted if bundled. Parcels must be faced and packed to remain oriented in transit. The total weight of sacks containing such parcels may not exceed 70 pounds. Requests for loose packing must be made in advance through the post office of mailing. [M610.5.5]
Except as provided in 5.4.7, Drop Shipment, a sack must be prepared when the quantity of mail for a required presort destination reaches either 125 pieces or 15 pounds of pieces, whichever occurs first, subject to these conditions:
1. The minimum that applies to the average piece weight for the entire mailing is used. The net weight of the mailing is divided by the number of pieces, and the resulting average single‑piece weight is used to determine whether the 125‑piece or 15‑pound minimum applies.
1. Irregular parcels: 125‑piece or 15‑pound minimum; labeling for Line 1, L606, Column B; for Line 2, "STD IRREG 5D SCHEME" or "STD IRREG 5D SCH."
2. Commingled machinable and irregular parcels: no minimum; labeling for Line 1, L606, Column B; for Line 2, "STD MACH‑IRREG 5D SCH."
1. Irregular parcels: 125‑piece or 15‑pound minimum; labeling for Line 1, city, state, and 5‑digit ZIP Code on mail (see 4.3 for overseas military mail); for Line 2, "STD IRREG 5D."
2. Commingled machinable and irregular parcels: 10‑pound minimum; labeling for Line 1, city, state, and 5‑digit ZIP Code on mail (see 4.3 for overseas military mail); for Line 2, "STD MACH‑IRREG 5D."
1. Line 1: L002, Column A.
1. Line 1: L002, Column A.
All mailings and all pieces in each mailing at Enhanced Carrier Route Standard Mail and Nonprofit Enhanced Carrier Route Standard Mail nonautomation rates are subject to specific preparation standards in 6.4, Bundling, and 6.5, Preparation for Irregular Parcels, and to these general standards:
a. All pieces must meet the standards for basic eligibility in 443.2.0 through 443.4.0 in Rates and Eligibility and specific eligibility in 443.6.0, Additional Eligibility Standards for Enhanced Carrier Route Standard Mail Parcels. Nonprofit Enhanced Carrier Route Standard Mail must meet the additional eligibility standards in 703.1.0.
b. All pieces in each mailing must be either all machinable parcels or all irregular parcels as defined in 401.1.0, unless excepted by standard.
2. Pieces with a simplified address format must meet the standards in 602.3.0, Use of Alternative Addressing.
e. Sortation determines rate eligibility as specified in 443.6.0. [M620.1.1]
Subject to the marking standards in 402.2.0, Enhanced Carrier Route Standard Mail pieces must be marked "Presorted Standard" (or "PRSRT STD"), and Nonprofit Enhanced Carrier Route Standard Mail pieces must be marked "Nonprofit Organization" (or "Nonprofit Org." or "Nonprofit"). All pieces must also be marked "ECRLOT" for basic rate, "ECRWSH" for high density rate, or "ECRWSS" for saturation rate. [M620.1.1c1]
A bundle with fewer than 10 pieces and a less‑than‑full a sack with fewer than 125 pieces and less than 15 pounds of pieces may be prepared to a carrier route when the saturation rate is claimed for the contents and the applicable density standard is met. [M620.1.3]
a. For identical‑weight pieces, a single‑piece weight of 1.92 ounces (0.12 pound) results in 125 pieces weighing 15 pounds. Identical‑weight pieces weighing 1.92 ounces (0.12 pound) or less must be prepared using the 125‑piece minimum; those that weigh more must be prepared using the 15‑pound minimum.
b. For nonidentical‑weight pieces, mailers must either use the minimum that applies to the average piece weight for the entire mailing (divide the net weight of the mailing by the number of pieces; the resulting average single‑piece weight determines whether the 125‑piece or 15‑pound minimum applies) or sack by the actual piece count or mail weight for each sack, if documentation can be provided with the mailing that shows (specifically for each sack) the number of pieces and their total weight.
c. Mailers must note on the accompanying postage statement whether they applied the 125‑piece ("PCS") or 15‑pound ("WT") threshold or the method in 6.5.1b ("BOTH"). [M620.5.1]
1. Line 1: city, state, and 5‑digit ZIP Code on mail (see 4.3 for overseas military mail).
1. Line 1: city, state, and 5‑digit ZIP Code on mail (see 4.3 for overseas military mail).
Mailpieces for which a walk‑sequence discount is claimed must be organized in the delivery sequence determined by the USPS and prepared as a carrier route mailing under 6.0 and the standards below. Pieces prepared with a simplified address must also meet the corresponding standards. [M050.1.1]
Some mailpieces cannot be sequenced because an exact match for a name or address cannot be obtained. These pieces may be included in a sequenced mailing only if they are placed behind or after the sequenced mail. Arrange these pieces:
Walk‑sequence rate pieces prepared with other than a simplified address format under 6.6.4 must be sequenced using USPS data from one of the following sources, issued within 90 days before the mailing date:
Walk‑sequence rate pieces prepared with a simplified address must be based on delivery stop information obtained within 90 days before the mailing date, either from the Delivery Statistics File or from the postmaster of the destination office. [M050.2.1]
Unless the mail is prepared in carrier walk sequence, line‑of‑travel (LOT) sequence is required for mailings at Standard Mail Enhanced Carrier Route basic rates. LOT sequence is not an exact walk sequence but a sequence of ZIP+4 codes arranged in the order that the route is served by a carrier. (First the ZIP+4 groups are sequenced, then the addresses within each are identified as being in ascending or descending order.) The USPS eLOT product provides a list of the ZIP+4 codes each carrier route serves, identifies the order in which they are delivered, and provides an indicator specifying whether the addresses that share the same ZIP+4 code must be sorted in ascending or descending order. When a range of ZIP+4 codes on the same carrier route are assigned the same sequence number, the addresses bearing those ZIP+4 codes must be arranged in ascending ZIP+4 code order before the sequence number is assigned. LOT information must be updated within 90 days before the date of mailing. [M050.2.4]
The postage statement must be annotated in the "Carrier Route Sequencing Date" block on page 1. The mailer must annotate the postage statement to show the earliest (oldest) date of the method used to obtain sequencing information for the mailing. The mailer's signature on the postage statement certifies that this standard has been met when the corresponding mail is presented to the USPS. The mailer must maintain documentation to substantiate compliance with the standards for carrier route sequencing. Unless submitted with each corresponding mailing, the mailer must be able to provide the USPS with documentation (if requested) of accurate sequencing or delivery statistics for each carrier route to which pieces are mailed. Acceptable forms of documentation are:
d. Evidence of receipt of information from postmasters for simplified address mailings (see 509.1.0, Address Information System Products).
For each Standard Mail carrier route to which high density rate mail is addressed, the mailer must document the total number of addressed pieces to the route. If there are fewer than 125 addressed pieces for a given route, the documentation also must show the number of possible deliveries on the route. [M050.3.2]
For each carrier route to which mail with a simplified address is sent at the saturation rate, the mailer must be able to document that the mailing meets the applicable density standard. This documentation must show the total number of active possible deliveries and the total number to which mailpieces in the mailing are being addressed, by 5‑digit ZIP Code and, within each, by carrier route. It must be submitted with each applicable mailing. [M050.3.3]
For each carrier route to which mail without a simplified address is sent at the saturation rate, the mailer must be able to document that the mailing meets the applicable density standards. This documentation must show either the total number of active possible residential deliveries and the number and percentage to which mailpieces are addressed, or the total number of all active possible deliveries and the number and percentage to which mailpieces are addressed, depending on whether qualification is based on the 90% or 75% criterion, respectively. The documentation must be listed by 5‑digit ZIP Code and, within each, by carrier route. It must be submitted with each applicable mailing. [M050.3.4]
If a mailing contains pieces qualifying for high density and saturation walk‑sequence rates, the documentation required may be combined. Entries for pieces at the high density rate must be so annotated on the documentation. For the entire mailing, a summary of the total number of pieces at each rate must be provided. This documentation must be submitted with each applicable mailing. [M050.3.5]
If a mailing includes high density and saturation rate and basic carrier route rate pieces, in addition to the applicable information required by 6.7.2 through 6.7.5, the documentation for the basic carrier route rate mail must show, by 5‑digit ZIP Code and, within each, by carrier route, the total number of addressed pieces at each rate for each carrier route to which pieces are addressed. Pieces qualifying for the basic carrier route rate must be so annotated. For the entire mailing, a summary by 5‑digit ZIP Code of the total number of pieces at each rate must be provided. This documentation must be submitted with each applicable mailing to meet the documentation standard for the carrier route rate. [M050.3.6]