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<title>Intelligent Mail barcode</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Intelligent Mail barcode</span></span>

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<p>The <b>Intelligent Mail Barcode</b> (<b>IMb</b>) is a 65-bar <a href="Barcode" title="Barcode">barcode</a> for use on <a href="Mail" title="Mail">mail</a> in the <a href="United_States" title="United States">United States</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The term "Intelligent Mail" refers to services offered by the <a href="United_States_Postal_Service" title="United States Postal Service">United States Postal Service</a> for domestic mail delivery. The IM barcode is intended to provide greater information and functionality than its predecessors <a href="POSTNET" title="POSTNET">POSTNET</a> and <a href="Postal_Alpha_Numeric_Encoding_Technique" title="Postal Alpha Numeric Encoding Technique">PLANET</a>. An Intelligent Mail barcode has also been referred to as a <i>One Code Solution</i> and a <i>4-State Customer Barcode</i>, abbreviated 4CB, 4-CB or USPS4CB. The complete specification can be found in USPS Document USPS-B-3200.<sup id="cite_ref-USPS_2015-04-20_2-0" class="reference"><a href="#cite_note-USPS_2015-04-20-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> It effectively incorporates the routing <a href="ZIP_Code" title="ZIP Code">ZIP Code</a> and tracking information included in previously used postal barcode standards.

</p><p>The barcode is applied by the sender; the Postal Service required use of the Intelligent Mail barcode to qualify for automation prices beginning January 28, 2013.<sup id="cite_ref-USPS_2008-09-17_3-0" class="reference"><a href="#cite_note-USPS_2008-09-17-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Use of the barcode provides increased overall efficiency, including improved deliverability, and new services.

</p>

<div class="mw-heading mw-heading2"><h2 id="Symbology">Symbology</h2></div>

<p>The Intelligent Mail barcode is a height-modulated barcode that encodes up to 31 <a href="Decimal" title="Decimal">decimal</a> digits of mail-piece data into 65 vertical bars.<sup id="cite_ref-USPS_2015-04-20_2-1" class="reference"><a href="#cite_note-USPS_2015-04-20-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>The code is made up of four distinct symbols, which is why it was once referred to as the 4-State Customer Barcode. Each bar contains the central "tracker" portion, and may contain an ascender, descender, neither, or both (a "full bar").

</p><p>The 65 bars represent 130 bits (or 39.13 decimal digits), grouped as ten 13-bit characters. Each character has 2, 5, 8, or 11 of its 13 bits set to one. The <a href="Hamming_distance" title="Hamming distance">Hamming distance</a> between characters is at least 2. Consequently, single-bit errors in a character can be detected (toggling one bit results in an invalid character). The characters are interleaved throughout the symbol.

</p><p>The number of characters can be calculated from the <a href="Binomial_coefficient" title="Binomial coefficient">binomial coefficient</a>.

</p>

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<annotation encoding="application/x-tex">{\displaystyle {\binom {13}{2}}+{\binom {13}{5}}+{\binom {13}{8}}+{\binom {13}{11}}=78+1287+1287+78=2\cdot 1365=2730}</annotation>

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</math></span><img src="./3aa2afd2927e39448c0713826564aa63837b70d4.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.505ex; width:75.413ex; height:6.176ex;" alt="{\displaystyle {\binom {13}{2}}+{\binom {13}{5}}+{\binom {13}{8}}+{\binom {13}{11}}=78+1287+1287+78=2\cdot 1365=2730}" loading="lazy"></span></dd></dl>

<p>The total number of characters is two times 1365, or 2730. Log<sub>2</sub>(2730) is 11.41469 bits per group. So the 65 bars (or 130 bits) encode a 114-bit message.

</p><p>The encoding includes an eleven-bit <a href="Cyclic_redundancy_check" title="Cyclic redundancy check">cyclic redundancy check</a> (CRC) to detect, but not correct, errors. Subtracting the 11 CRC bits from the 114-bit message leaves an information payload of 103 bits (the specification sets one of those bits to zero). Consequently, 27 of the 130 bits are devoted to error detection.

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<div class="mw-heading mw-heading2"><h2 id="Data_payload">Data payload</h2></div>

<p>The IM barcode carries a data payload of up to 31 digits representing the following elements:

</p>

<caption>Intelligent Mail barcode components

</caption>

<th>Index of first digit</th>

<th>Length</th>

<th>Name

</th></tr>

<tr>

<td>Barcode identifier

</td></tr>

<tr>

<td>Service type identifier

</td></tr>

<tr>

<td>Mailer ID

</td></tr>

<tr>

<td>Sequence number

</td></tr>

<tr>

<td>ZIP (routing) code

</td></tr></tbody></table>

<div class="mw-heading mw-heading3"><h3 id="Barcode_identifier">Barcode identifier</h3></div>

<p>A barcode identifier is assigned by the United States Postal Service to encode the presort identification that is currently printed in human-readable form on the optional endorsement line (OEL). It is also available for future United States Postal Service use. This is accomplished using two digits, with the second digit in the range of 0–4. The allowable encoding ranges are 00–04, 10–14, 20–24, 30–34, 40–44, 50–54, 60–64, 70–74, 80–84, and 90–94.

</p><p>The first digit of the barcode identifier is defined as:

</p>

<th>Value

</th>

<th>OEL description

</th></tr>

<tr>

<td>Default / no OEL information

</td></tr>

<tr>

<td>Carrier route (CR), enhanced carrier route (ECR), and FIRM

</td></tr>

<tr>

<td>5-digit/scheme

</td></tr>

<tr>

<td>3-digit/scheme

</td></tr>

<tr>

<td>Area distribution center (ADC)

</td></tr>

<tr>

<td>Mixed area distribution center (MADC), origin mixed ADC (OMX)

</td></tr></tbody></table>

<div class="mw-heading mw-heading3"><h3 id="Service_type_identifier_(STID)">Service type identifier (STID)</h3></div>

<p>A three-digit value represents both the class of the mail (such as first-class, standard mail, or periodical), and any services requested by the sender.

</p><p>Basic STIDs, for the purpose of automation only, are as follows:

</p>

<th>Value

</th>

<th>STID description

</th></tr>

<tr>

<td>First-class mail with no services

</td></tr>

<tr>

<td>Standard mail with no services

</td></tr>

<tr>

<td>First-class mail, basic option with destination IMb tracing<sup id="cite_ref-imb-tracing-user-guide-v1-6_4-0" class="reference"><a href="#cite_note-imb-tracing-user-guide-v1-6-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

</td></tr>

<tr>

<td>Standard mail, basic option with destination IMb tracing<sup id="cite_ref-imb-tracing-user-guide-v1-6_4-1" class="reference"><a href="#cite_note-imb-tracing-user-guide-v1-6-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

</td></tr>

<tr>

<td>Periodicals with manual address correction

</td></tr>

<tr>

<td>Bound printed matter with no services

</td></tr>

<tr>

<td>Business reply mail with no services

</td></tr>

<tr>

<td>Priority mail with no services

</td></tr>

<tr>

<td>Priority mail flat rate with no services

</td></tr></tbody></table>

<p>For a detailed list of STIDs, see Appendix A of the USPS Guide to Intelligent Mail Letters and Flats<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> or Service Type Identifiers.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading3"><h3 id="Mailer_ID">Mailer ID</h3></div>

<p>A 6- or 9-digit number assigned by the United States Postal Service identifies the specific business sending the mailing. Higher-volume mailers are eligible to receive 6-digit mailer IDs, which have a larger range of associated sequence numbers; lower-volume mailers receive 9-digit mailer IDs. To make it possible to distinguish 6-digit IDs from 9-digit IDs, all 6-digit IDs begin with a digit between 0 and 8 inclusive, while all 9-digit IDs begin with the digit 9.

</p>

<div class="mw-heading mw-heading3"><h3 id="Sequence_number">Sequence number</h3></div>

<p>A mailer-assigned 6- or 9-digit ID specific to one piece of mail, to identify the specific recipient or household. The mailer must ensure that this number remains unique for a 45-day period after the mail is sent if a full service discount is claimed; otherwise, it does not have to be unique. The sequence number is either 6 or 9 digits, based on the length of the mailer ID. If the mailer ID is 6 digits long, then the sequence number is 9 digits long, and conversely, so that there will always be 15 digits in total when the mailer ID and the sequence number are combined.

</p>

<div class="mw-heading mw-heading3"><h3 id="Delivery-point_ZIP_code">Delivery-point ZIP code</h3></div>

<p>This section of the code may be omitted, but if it is present, the 5-, 9-, or 11-digit forms of the <a href="ZIP_Code" title="ZIP Code">ZIP Code</a> are also encoded in the Intelligent Mail barcode. The full 11-digit form includes the standard 5-digit ZIP code, the ZIP + 4 code, and a 2-digit code indicating the exact <a href="Delivery_point" title="Delivery point">delivery point</a>. This is the same information that was encoded in the POSTNET barcode, which the Intelligent Mail barcode replaces.

</p>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://about.usps.com/election-mail/steps-to-creating-intelligent-mail-barcode.pdf">"steps-to-creating-intelligent-mail-barcode.pdf"</a> <span class="cs1-format">(PDF)</span>. <i>United States Postal Service usps.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2021-08-20</span></span>.</cite></span>

</li>

<li id="cite_note-USPS_2015-04-20-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-USPS_2015-04-20_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-USPS_2015-04-20_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://postalpro.usps.com/storages/2017-08/2190_USPSB3200IntelligentMailBarcode4State_0.pdf">"Intelligent Mail Barcode 4-State Specification (Rev H)"</a> <span class="cs1-format">(PDF)</span>. United States Postal Service. April 20, 2015. p. 1<span class="reference-accessdate">. Retrieved <span class="nowrap">2019-10-10</span></span>.</cite></span>

</li>

<li id="cite_note-USPS_2008-09-17-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-USPS_2008-09-17_3-0">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120730001506/https://ribbs.usps.gov/index.cfm?page=intellmaillatestnews">"Intelligent Mail Services Latest News"</a>. United States Postal Service. September 21, 2012. Archived from <a rel="nofollow" class="external text" href="https://ribbs.usps.gov/index.cfm?page=intellmaillatestnews">the original</a> <span class="cs1-format">(PDF)</span> on 2012-07-30<span class="reference-accessdate">. Retrieved <span class="nowrap">2012-09-27</span></span>. <q>The Intelligent Mail barcode, formerly referred to as the 4-State Customer barcode, is a new Postal Service barcode used to sort and track letters and flats. The Postal Service is promoting use of the Intelligent Mail barcode because it expands the ability to track individual mailpieces and provides customers with greater visibility into the mailstream.</q></cite></span>

</li>

<li id="cite_note-imb-tracing-user-guide-v1-6-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-imb-tracing-user-guide-v1-6_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-imb-tracing-user-guide-v1-6_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://www.usps.com/mailtracking/_pdf/imb-tracing-user-guide-v1-6-final.pdf"><i>IMb Tracing User Guide</i></a> <span class="cs1-format">(PDF)</span>. USPS. January 9, 2012. p. 13.</cite></span>

</li>

<li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://ribbs.usps.gov/intelligentmail_guides/documents/tech_guides/GuidetoIntelligentMailLettersandFlats.pdf">USPS Guide to Intelligent Mail Letters and Flats</a>.</span>

</li>

<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://postalpro.usps.com/mailing/service-type-identifiers"><i>Service Type Identifiers</i></a><span class="reference-accessdate">, retrieved <span class="nowrap">2020-09-22</span></span></cite></span>

</li>

</ol></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://postalpro.usps.com/node/218">USPS Intelligent Mail Barcode Resources</a></li></ul>

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</style><div id="United_States_Postal_Service82" style="font-size:114%;margin:0 4em"><a href="United_States_Postal_Service" title="United States Postal Service">United States Postal Service</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="American_Letter_Mail_Company" title="American Letter Mail Company">American Letter Mail Company</a></li>

<li><a href="American_Postal_Workers_Union" title="American Postal Workers Union">American Postal Workers Union</a></li>

<li><a href="Board_of_Governors_of_the_United_States_Postal_Service" title="Board of Governors of the United States Postal Service">Board of Governors of the United States Postal Service</a></li>

<li><a href="Bureau_of_Transportation" title="Bureau of Transportation">Bureau of Transportation</a></li>

<li><a href="Citizens'_Stamp_Advisory_Committee" title="Citizens' Stamp Advisory Committee">Citizens' Stamp Advisory Committee</a></li>

<li><a href="National_Alliance_of_Postal_and_Federal_Employees" title="National Alliance of Postal and Federal Employees">National Alliance of Postal and Federal Employees</a></li>

<li><a href="National_Association_of_Letter_Carriers" title="National Association of Letter Carriers">National Association of Letter Carriers</a></li>

<li><a href="National_Association_of_Presort_Mailers" title="National Association of Presort Mailers">National Association of Presort Mailers</a></li>

<li><a href="National_Postal_Mail_Handlers_Union" title="National Postal Mail Handlers Union">National Postal Mail Handlers Union</a></li>

<li><a href="National_Rural_Letter_Carriers'_Association" title="National Rural Letter Carriers' Association">National Rural Letter Carriers' Association</a></li>

<li><a href="Postal_Regulatory_Commission" title="Postal Regulatory Commission">Postal Regulatory Commission</a></li>

<li><a href="Postal_Transportation_Service" title="Postal Transportation Service">Postal Transportation Service</a></li>

<li><a href="PostalWatch_Incorporated" title="PostalWatch Incorporated">PostalWatch Incorporated</a></li>

<li><a href="United_States_Postal_Inspection_Service" title="United States Postal Inspection Service">United States Postal Inspection Service</a></li>

<li><a href="United_States_Postal_Service_Office_of_Inspector_General" title="United States Postal Service Office of Inspector General">United States Postal Service Office of Inspector General</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Systems</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Address_Management_System" title="Address Management System">Address Management System</a></li>

<li><a href="Advanced_Facer-Canceler_System" title="Advanced Facer-Canceler System">Advanced Facer-Canceler System</a></li>

<li><a href="Coding_Accuracy_Support_System" title="Coding Accuracy Support System">Coding Accuracy Support System</a></li>

<li><a href="Delivery_Bar_Code_Sorter" title="Delivery Bar Code Sorter">Delivery Bar Code Sorter</a></li>

<li><a href="Flats_Sequencing_System" title="Flats Sequencing System">Flats Sequencing System</a></li>

<li><a href="Locatable_Address_Conversion_System" title="Locatable Address Conversion System">Locatable Address Conversion System</a></li>

<li><a href="United_States_Postal_Savings_System" title="United States Postal Savings System">United States Postal Savings System</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Services</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Click-N-Ship" title="Click-N-Ship">Click-N-Ship</a></li>

<li><a href="Express_mail_in_the_United_States" title="Express mail in the United States">Express mail in the United States</a></li>

<li><a href="National_Change_Of_Address" class="mw-redirect" title="National Change Of Address">National Change Of Address</a></li>

<li><a href="Permit_mail" class="mw-redirect" title="Permit mail">Permit mail</a></li>

<li><a href="Permit_Reply_Mail" title="Permit Reply Mail">Permit Reply Mail</a></li>

<li><a href="United_States_postal_notes" title="United States postal notes">Postal notes</a></li>

<li><a href="Railway_Mail_Service" title="Railway Mail Service">Railway Mail Service</a></li>

<li><a href="Registered_mail" title="Registered mail">Registered mail</a></li>

<li><a href="U.S._Special_Delivery_(postal_service)" title="U.S. Special Delivery (postal service)">Special Delivery</a></li>

<li><a href="Special_handling" title="Special handling">Special handling</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Facilities</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Air_mail_facility" title="Air mail facility">Air mail facility</a></li>

<li><a href="Boat_railway_post_office" title="Boat railway post office">Boat railway post office</a></li>

<li><a href="Community_post_office" title="Community post office">Community post office</a></li>

<li><a href="Dead_letter_office" class="mw-redirect" title="Dead letter office">Dead letter office</a></li>

<li><a href="Highway_post_office" class="mw-redirect" title="Highway post office">Highway post office</a></li>

<li><i><a href="J._W._Westcott_II" title="J. W. Westcott II">J. W. Westcott II</a></i></li>

<li><a href="List_of_United_States_post_offices" title="List of United States post offices">List of United States post offices</a></li>

<li><a href="National_Postal_Museum" title="National Postal Museum">National Postal Museum</a></li>

<li><a href="Network_distribution_center" title="Network distribution center">Network distribution center</a></li>

<li><a href="Railway_mail_service_library" class="mw-redirect" title="Railway mail service library">Railway mail service library</a></li>

<li><a href="Red_Brick_Roads" class="mw-redirect" title="Red Brick Roads">Red Brick Roads</a></li>

<li><a href="Sectional_center_facility" title="Sectional center facility">Sectional center facility</a></li>

<li><a href="Streetcar_railway_post_office" title="Streetcar railway post office">Streetcar railway post office</a></li>

<li><a href="Terminal_railway_post_office" title="Terminal railway post office">Terminal railway post office</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Legal</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Comstock_Act_of_1873" title="Comstock Act of 1873">Comstock Act of 1873</a></li>

<li><a href="Post_Office_Consolidation_Act_of_1872" title="Post Office Consolidation Act of 1872">Post Office Consolidation Act of 1872</a></li>

<li><a href="Postal_Accountability_and_Enhancement_Act" title="Postal Accountability and Enhancement Act">Postal Accountability and Enhancement Act of 2006</a></li>

<li><a href="Postal_Reorganization_Act_of_1970" class="mw-redirect" title="Postal Reorganization Act of 1970">Postal Reorganization Act of 1970</a></li>

<li><a href="Postal_Service_Act_of_1792" class="mw-redirect" title="Postal Service Act of 1792">Postal Service Act of 1792</a></li>

<li><a href="Postal_Service_Reform_Act_of_2022" title="Postal Service Reform Act of 2022">Postal Service Reform Act of 2022</a></li>

<li><a href="Private_Express_Statutes" title="Private Express Statutes">Private Express Statutes</a></li>

<li><a href="Rural_Post_Roads_Act_of_1916" title="Rural Post Roads Act of 1916">Rural Post Roads Act of 1916</a></li>

<li><a href="Title_39_of_the_United_States_Code" title="Title 39 of the United States Code">Title 39 of the United States Code</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="2020_United_States_Postal_Service_crisis" title="2020 United States Postal Service crisis">2020 United States Postal Service crisis</a></li>

<li><a href="United_States_airmail_service" title="United States airmail service">United States airmail service</a></li>

<li><a href="Catcher_pouch" title="Catcher pouch">Catcher pouch</a></li>

<li><a href="Cimarron_Redoubt" title="Cimarron Redoubt">Cimarron Redoubt</a></li>

<li><a href="Domestic_Mail_Manual" title="Domestic Mail Manual">Domestic Mail Manual</a></li>

<li><a href="Facing_Identification_Mark" title="Facing Identification Mark">Facing Identification Mark</a></li>

<li><a href="Flats_(USPS)" class="mw-redirect" title="Flats (USPS)">Flats</a></li>

<li><a href="Grumman_LLV" title="Grumman LLV">Grumman LLV</a></li>

<li><a href="Information-Based_Indicia" title="Information-Based Indicia">Information-Based Indicia</a></li>

<li><i><a href="The_Inspectors" title="The Inspectors">The Inspectors</a></i></li>

<li><a href="Label_228" title="Label 228">Label 228</a></li>

<li><a href="List_of_postal_killings" title="List of postal killings">List of postal killings</a></li>

<li><a href="List_of_U.S._state_abbreviations" class="mw-redirect" title="List of U.S. state abbreviations">List of U.S. state abbreviations</a></li>

<li><a href="List_of_United_States_airmail_stamps" title="List of United States airmail stamps">List of United States airmail stamps</a></li>

<li><a href="Mail_cover" title="Mail cover">Mail cover</a></li>

<li><a href="Mail_Isolation_Control_and_Tracking" title="Mail Isolation Control and Tracking">Mail Isolation Control and Tracking</a></li>

<li><a href="Mail_jumping" title="Mail jumping">Mail jumping</a></li>

<li><a href="Mail_pouch" class="mw-redirect" title="Mail pouch">Mail pouch</a></li>

<li><a href="Mail_satchel" class="mw-redirect" title="Mail satchel">Mail satchel</a></li>

<li><i>The Mail Story</i></li>

<li><a href="Nixie_(postal)" title="Nixie (postal)">Nixie</a></li>

<li><a href="Owney_(dog)" title="Owney (dog)">Owney (dog)</a></li>

<li><a href="Pony_Express_mochila" title="Pony Express mochila">Pony Express mochila</a></li>

<li><a href="Postage_stamps_and_postal_history_of_the_United_States" title="Postage stamps and postal history of the United States">Postage stamps and postal history of the United States</a></li>

<li><a href="Postal_Alpha_Numeric_Encoding_Technique" title="Postal Alpha Numeric Encoding Technique">Postal Alpha Numeric Encoding Technique</a></li>

<li><a href="Postal_Clause" title="Postal Clause">Postal Clause</a></li>

<li><a href="Postal_voting_in_the_United_States" title="Postal voting in the United States">Postal voting in the United States</a></li>

<li><a href="Postal_worker" title="Postal worker">Postal worker</a></li>

<li><a href="United_States_Postmaster_General" title="United States Postmaster General">Postmaster General</a></li>

<li><a href="Prohibitory_Order" title="Prohibitory Order">Prohibitory Order</a></li>

<li><a href="Remote_Bar_Coding_System" title="Remote Bar Coding System">Remote Bar Coding System</a></li>

<li><a href="Rural_Free_Delivery" title="Rural Free Delivery">Rural Free Delivery</a></li>

<li><a href="Rural_letter_carrier" title="Rural letter carrier">Rural letter carrier</a></li>

<li><a href="United_States_post_office_murals" title="United States post office murals">United States post office murals</a>

<ul><li><a href="List_of_United_States_post_office_murals" title="List of United States post office murals">List of murals</a></li></ul></li>

<li><a href="USPS_Post_Office_Box_Lobby_Recycling_program" title="USPS Post Office Box Lobby Recycling program">USPS Post Office Box Lobby Recycling program</a></li>

<li><a href="United_States_Postal_Service_creed" title="United States Postal Service creed">United States Postal Service creed</a></li></ul>

</div></td></tr></tbody></table></div>

<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Barcodes453" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><div id="Barcodes453" style="font-size:114%;margin:0 4em"><a href="Barcode" title="Barcode">Barcodes</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Linear barcodes</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="KarTrak" title="KarTrak">Automatic Car Identification</a></li>

<li><a href="Codabar" title="Codabar">Codabar</a></li>

<li><a href="International_Article_Number" title="International Article Number">European Article Number</a></li>

<li><a href="GS1_DataBar" class="mw-redirect" title="GS1 DataBar">GS1 DataBar</a></li>

<li><a href="Industrial_2_of_5" title="Industrial 2 of 5">Industrial 2 of 5</a></li>

<li><a href="Interleaved_2_of_5" title="Interleaved 2 of 5">Interleaved 2 of 5</a></li>

<li><a href="Matrix_2_of_5" title="Matrix 2 of 5">Matrix 2 of 5</a></li>

<li><a href="MSI_Barcode" title="MSI Barcode">MSI Barcode</a></li>

<li><a href="Patch_Code" title="Patch Code">Patch Code</a></li>

<li><a href="Pharmacode" title="Pharmacode">Pharmacode</a></li>

<li><a href="Plessey_Code" title="Plessey Code">Plessey</a></li>

<li><a href="Telepen" title="Telepen">Telepen</a></li>

</div></td><td class="noviewer navbox-image" rowspan="9" style="width:1px;padding:0 0 0 2px"><div><table>

</tr><tr><td><a href="Universal_Product_Code" title="Universal Product Code">UPC-A</a></td>

</tr><tr><td><span typeof="mw:File"></span></td>

</tr><tr><td><a href="MaxiCode" title="MaxiCode">MaxiCode</a></td>

</tr></tbody></table></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Mail" title="Mail">Post office</a> barcodes</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="CPC_Binary_Barcode" title="CPC Binary Barcode">CPC Binary Barcode</a></li>

<li><a href="Facing_Identification_Mark" title="Facing Identification Mark">Facing Identification Mark</a></li>

<li><a href="PostBar" title="PostBar">PostBar</a></li>

<li><a href="POSTNET" title="POSTNET">POSTNET</a></li>

<li><a href="Postal_Alpha_Numeric_Encoding_Technique" title="Postal Alpha Numeric Encoding Technique">PLANET</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">2D barcodes (stacked)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Codablock" title="Codablock">Codablock</a></li>

<li><a href="GS1_DataBar" class="mw-redirect" title="GS1 DataBar">GS1 DataBar</a></li>

<li><a href="MicroPDF417" title="MicroPDF417">MicroPDF417</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">2D barcodes (<a href="Matrix_(mathematics)" title="Matrix (mathematics)">matrix</a>)</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Aztec_Code" title="Aztec Code">Aztec Code</a></li>

<li><a href="Data_Matrix" title="Data Matrix">Data Matrix</a> (<a href="Semacode" title="Semacode">Semacode</a>)</li>

<li><a href="DotCode" title="DotCode">DotCode</a></li>

<li><a href="MaxiCode" title="MaxiCode">MaxiCode</a></li>

<li><a href="Boxing_barcode" title="Boxing barcode">Boxing</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Polar_coordinate_system" title="Polar coordinate system">Polar coordinate</a> barcodes</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="MaxiCode" title="MaxiCode">MaxiCode</a></li>

<li><a href="ShotCode" title="ShotCode">ShotCode</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="High_Capacity_Color_Barcode" title="High Capacity Color Barcode">High Capacity Color Barcode (Microsoft Tag)</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Technological issues</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Barcode_library" title="Barcode library">Barcode library</a></li>

<li><a href="Barcode_printer" title="Barcode printer">Barcode printer</a></li>

<li><a href="Barcode_reader" title="Barcode reader">Barcode reader</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other data tags</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Bokode" title="Bokode">Bokode</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Supply_chain_management" title="Supply chain management">Supply chain management</a></li>

<li><a href="Object_hyperlinking" title="Object hyperlinking">Object hyperlinking</a></li>

<li><a href="Matrix_(mathematics)" title="Matrix (mathematics)">Matrix</a></li>

<li><a href="Mobile_tagging" title="Mobile tagging">Mobile tagging</a></li>

<li><a href="CueCat" title="CueCat">CueCat</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="3"><div>

<ul><li><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> Category</li>

<li><span class="noviewer" typeof="mw:File"><span title="Commons page"></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Barcode" class="extiw external" title="commons:Category:Barcode">Commons</a></li></ul>

</div></td></tr></tbody></table></div><div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Mail_and_postal_systems645" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><div id="Mail_and_postal_systems645" style="font-size:114%;margin:0 4em"><a href="Mail" title="Mail">Mail and postal systems</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Postal_history" title="Postal history">History</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Timeline_of_postal_history" title="Timeline of postal history">Timeline of postal history</a></li>

<li>African countries</li>

<li>Asian countries</li>

<li>European countries</li>

<li>Oceanian countries</li>

<li>Pan-American countries</li>

<li><a href="Postal_censorship" title="Postal censorship">Postal censorship</a></li></ul>

</div></td><td class="noviewer navbox-image" rowspan="8" style="width:1px;padding:0 0 0 2px"><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Components</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Advertising_mail" title="Advertising mail">Advertising mail</a></li>

<li><a href="Envelope" title="Envelope">Envelope</a></li>

<li><a href="Indicia_(philately)" title="Indicia (philately)">Indicia</a></li>

<li><a href="Information-Based_Indicia" title="Information-Based Indicia">Information-Based Indicia</a></li>

<li><a href="Letter_box" title="Letter box">Letter box</a></li>

<li><a href="Meter_stamp" title="Meter stamp">Meter stamp</a></li>

<li><a href="Parcel_post" title="Parcel post">Parcel</a></li>

<li><a href="Parcel_locker" title="Parcel locker">Parcel locker</a></li>

<li><a href="Post_box" title="Post box">Post box / Mailbox</a></li>

<li><a href="Relay_box" title="Relay box">Relay box</a></li>

<li><a href="Post_office" title="Post office">Post office</a></li>

<li><a href="Post_office_box" title="Post office box">Post office box</a></li>

<li><a href="Postage_meter" title="Postage meter">Postage meter</a></li>

<li><a href="Postage_stamp" title="Postage stamp">Postage stamp</a></li>

<li><a href="Postal_code" title="Postal code">Postal code</a></li>

<li><a href="Postal_marking" title="Postal marking">Postal marking</a></li>

<li><a href="Variable_value_stamp" title="Variable value stamp">Variable value stamp</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Delivery</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Airmail" title="Airmail">Airmail</a></li>

<li><a href="Express_mail" title="Express mail">Express</a></li>

<li><a href="Package_delivery" title="Package delivery">Package delivery</a></li>

<li><a href="Registered_mail" title="Registered mail">Registered</a></li>

<li><a href="Surface_mail" title="Surface mail">Surface</a></li>

<li><a href="Surface_Air_Lifted" title="Surface Air Lifted">Surface Air Lifted (SAL)</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Staff</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Mail_carrier" title="Mail carrier">Mail carrier</a></li>

<li><a href="Postal_worker" title="Postal worker">Postal worker</a></li>

<li><a href="Postmaster" title="Postmaster">Postmaster</a></li>

<li><a href="Postmaster_General" title="Postmaster General">Postmaster General</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Processing</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul>

<li><a href="Mail_Isolation_Control_and_Tracking" title="Mail Isolation Control and Tracking">Mail Isolation Control and Tracking</a></li>

<li><a href="Multiline_Optical_Character_Reader" class="mw-redirect" title="Multiline Optical Character Reader">Multiline Optical Character Reader</a></li>

<li><a href="Mail_cover" title="Mail cover">Mail cover</a></li>

<li><a href="Mail_sorting" title="Mail sorting">Mail sorting</a></li>

<li><a href="Package_forwarding" title="Package forwarding">Package forwarding</a></li>

<li><a href="Postal_Alpha_Numeric_Encoding_Technique" title="Postal Alpha Numeric Encoding Technique">PLANET</a></li>

<li><a href="POSTNET" title="POSTNET">POSTNET</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"> Institutions and systems</div></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="List_of_postal_entities" title="List of postal entities">Postal entities</a></li>

<li><a href="Postal_museum" title="Postal museum">Postal museums</a></li>

<li><a href="List_of_national_postal_services" title="List of national postal services">Postal services</a></li>

<li>Postal systems by country</li>

<li>Trade unions</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Courier" title="Courier">Courier</a></li>

<li><a href="Philately" title="Philately">Philately</a>

<ul><li><a href="List_of_most_expensive_philatelic_items" title="List of most expensive philatelic items">most expensive philatelic items</a></li></ul></li>

<li><a href="Stamp_collecting" title="Stamp collecting">Stamp collecting</a>

<ul><li><a href="List_of_postage_stamps" title="List of postage stamps">notable stamps</a></li>

<li><a href="Stamp_catalog" title="Stamp catalog">catalogues</a></li>

<li>Philatelic terminology</li>

<li><a href="Philatelic_fakes_and_forgeries" title="Philatelic fakes and forgeries">fakes and forgeries</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">List of entities that have <br>issued postage stamps</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div>

<ul><li><b><span class="nowrap"><span class="noviewer" typeof="mw:File"><span></span></span> </span><a href="Portal%3APhilately" title="Portal:Philately">Philately portal</a></b></li>

<li><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> <b>Category</b></li>

<li><span class="noviewer" typeof="mw:File"><span title="Commons page"></span></span> <b><a href="https://commons.wikimedia.org/wiki/Category:Post" class="extiw external" title="commons:Category:Post">Commons</a></b></li></ul>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-05-20" href="https://en.wikipedia.org/wiki/?title=Intelligent_Mail_barcode&oldid=1291329654">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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