{"id":733031,"date":"2022-04-30T07:59:40","date_gmt":"2022-04-30T11:59:40","guid":{"rendered":"https:\/\/www.thecompliancecenter.com\/ca\/?p=733031"},"modified":"2025-09-08T03:17:38","modified_gmt":"2025-09-08T07:17:38","slug":"what-do-un-markings-on-packages-mean","status":"publish","type":"post","link":"https:\/\/www.thecompliancecenter.com\/ca\/help-center\/articles\/what-do-un-markings-on-packages-mean\/","title":{"rendered":"What Do UN Markings on Packages Mean?"},"content":{"rendered":"<p><em>This post was originally published in November 2020 and has been updated in April 2022 for accuracy.<\/em><\/p>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-733047\" src=\"https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020.png\" alt=\"\" width=\"1001\" height=\"301\" srcset=\"https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020.png 1001w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020-300x90.png 300w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020-768x231.png 768w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020-600x180.png 600w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2020\/11\/ICC_UNMarkings_Blog_11-2020-64x19.png 64w\" sizes=\"auto, (max-width: 1001px) 100vw, 1001px\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Shipping hazardous materials requires them to be in compliance with UN standards. This means hazardous material needs to be properly classified, described, packaged, marked, labeled, and in condition for shipment as required or authorized by applicable federal requirements.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">At ICC our<\/span><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/packaging\/\"> <span style=\"font-weight: 400;\">UN packaging solutions<\/span><\/a><span style=\"font-weight: 400;\"> meet or exceed DOT 49 CFR, IATA, ICAO, IMDG, TDG, FedEx, and UPS requirements.<\/span><\/p>\n<h3><b>Understanding UN Markings<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">UN markings comprise a series of codes separated by slashes that provide relevant information about the package being shipped. UN markings start with the UN symbol followed by codes that identify the following:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Package Type<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Material<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Category<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Packing Group<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Maximum Gross Mass\/Specific Gravity<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Single or Combination Packaging\/Hydrostatic Test Pressure<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Year of Manufacture<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Location of Manufacturer<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Manufacturer Code<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Minimum Thickness<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Year of Reconditioning<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Month of Manufacture<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Stacking Test Load<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Supplemental Packaging Code\u00a0<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-855916 \" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2020\/11\/ICC_Blog_Image-1024x576.png\" alt=\"\" width=\"872\" height=\"491\" \/><\/p>\n<p><b>United Nations Symbol: <\/b><span style=\"font-weight: 400;\">UN letters must be in circle; or on a metal package only embossed<\/span><\/p>\n<p><b>Packaging Code:<\/b><span style=\"font-weight: 400;\"> Designates the type of packaging and material of construction. EX: <\/span><b>4<\/b><span style=\"font-weight: 400;\"> [container type] <\/span><b>G<\/b><span style=\"font-weight: 400;\"> [material] <\/span><b>V<\/b><span style=\"font-weight: 400;\"> [variation package]<\/span><\/p>\n<p><b>Packing Group:<\/b><span style=\"font-weight: 400;\"> This refers to the hazard level of the package.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">X= PG I, II, III<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Y= PG II or III<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Z= PG III only<\/span><\/li>\n<\/ul>\n<p><b>Maximum Gross Mass:<\/b><span style=\"font-weight: 400;\"> Maximum gross mass measured in kilograms.<\/span><\/p>\n<p><b>Maximum Specific Gravity: <\/b><span style=\"font-weight: 400;\">Single<\/span> <span style=\"font-weight: 400;\">packages that contain liquids must be marked with the specific gravity rounded to the first decimal.<\/span><\/p>\n<p><b>S-<\/b> <span style=\"font-weight: 400;\">Designates that the packaging is certified to contain inner packaging (is a combination package); or is a single packaging intended to contain solids.<\/span><\/p>\n<p><b>Hydrostatic Test Pressure:<\/b><span style=\"font-weight: 400;\"> Internal hydrostatic test pressure in kilopascals specifies that a single<\/span> <span style=\"font-weight: 400;\">packaging is designed for liquids.<\/span><\/p>\n<p><b>Year of Manufacture:<\/b><span style=\"font-weight: 400;\"> Last two digits of the year of manufacture.<\/span><\/p>\n<p><b>Country of Authorization:<\/b><span style=\"font-weight: 400;\"> Country designation code where the package is manufactured and marked.<\/span><\/p>\n<p><b>Manufacturer Identification:<\/b><span style=\"font-weight: 400;\"> Code for the packaging manufacturer or certification agency.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">ICC offers a<\/span><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product\/po-ms23e\/\"> <span style=\"font-weight: 400;\">UN Performance Packaging guide<\/span><\/a><span style=\"font-weight: 400;\"> that explains symbols, packaging codes, performance levels, and the difference between markings for liquids, solids, and combination packaging.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you have any questions regarding UN packaging and want to know if this is the right packaging option for you,<\/span><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/contact-us\/\"> <span style=\"font-weight: 400;\">contact us today!<\/span><\/a><\/p>\n<p><em><strong>We have all the products, services and training you need to ensure your staff is properly trained and informed.<\/strong><\/em><\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/packaging\/4g-boxes-combination\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-209547 size-thumbnail\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2019\/11\/ICC_Packaging_4GUNCombination-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/packaging\/4g-boxes-combination\/\">4G UN Boxes &#8211; Combination<\/a><\/td>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/packaging\/4gv-boxes-variation\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-209549 size-thumbnail\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2019\/11\/ICC_Packaging_4GVUNVariation-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/packaging\/4gv-boxes-variation\/\">4GV UN Boxes &#8211; Variation<\/a><\/td>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/posters-and-charts\/un-packaging\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-209567 size-thumbnail\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2019\/11\/ICC_Posters_UNPackaging-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/posters-and-charts\/un-packaging\/\">UN Packaging Posters &amp; Charts<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This post was originally published in November 2020 and has been updated in April 2022 for accuracy. Shipping hazardous materials&#8230;<\/p>\n","protected":false},"author":12544,"featured_media":733047,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[2413,2661,3047,5085],"tags":[2362,2366,2368,2496,2574,2612],"class_list":["post-733031","post","type-post","status-publish","format-standard","has-post-thumbnail","category-tdg-regulation-updates","category-49-cfr-regulation-updates","category-packaging-updates","category-un-packaging","tag-dangerous-goods","tag-tdg","tag-49-cfr","tag-shipping","tag-hazardous-materials","tag-un-packaging"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Do UN Markings on Packages Mean? - ICC Compliance Center Inc - Canada<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\/ca\/wp-json\/wp\/v2\/posts\/733031\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Do UN Markings on Packages Mean? - ICC Compliance Center Inc - Canada\" \/>\n<meta property=\"og:description\" content=\"This post was originally published in November 2020 and has been updated in April 2022 for accuracy. 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