{"id":9145,"date":"2023-04-30T10:30:52","date_gmt":"2023-04-30T14:30:52","guid":{"rendered":"http:\/\/blog.thecompliancecenter.com\/?p=9145"},"modified":"2025-09-11T01:58:30","modified_gmt":"2025-09-11T05:58:30","slug":"symbols-transportation-regulations","status":"publish","type":"post","link":"https:\/\/www.thecompliancecenter.com\/ca\/help-center\/articles\/symbols-transportation-regulations\/","title":{"rendered":"Symbols in Transportation Regulations"},"content":{"rendered":"<p><em>This post was originally published in April 2018 and has been updated in April 2023 for accuracy.<\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-730402\" src=\"https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog.png\" alt=\"\" width=\"1001\" height=\"301\" srcset=\"https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog.png 1001w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog-300x90.png 300w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog-768x231.png 768w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog-600x180.png 600w, https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2018\/04\/ICC_Symbols_Blog-64x19.png 64w\" sizes=\"auto, (max-width: 1001px) 100vw, 1001px\" \/><\/p>\n<p>As an avid reader and science nerd, the author Dan Brown is a different type of read. His lead character, Dr. Robert Langdon, is a professor of symbology. This means he studies and understands various symbols found in history and codes. Sometimes in transportation, we must be our own Dr. Langdon to decipher what the regulations are trying to tell us.<\/p>\n<p>Here are some of the common symbols you could see with their meanings. Also included is where in each regulation you can find further information. By the way, have you purchased the <a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/us-49-cfr\/\">latest update to 49 CFR yet<\/a>?<\/p>\n<h3>Symbols in IATA and IMDG:<\/h3>\n<ol>\n<li>\u25a0 The square: This symbol tells us new material has been added to the regulation or edition.<\/li>\n<li>\u25b2 The triangle: Here it indicates some part of that section of the regulation changed in some way.\u00a0 It could be as simple as one word, sentence, or entire section that was reworked or clarified.<\/li>\n<li>\u2205 The crossed-out circle: This one is a space holder showing some part or section has been removed, deleted or cancelled from the current edition. A very useful symbol, because it will keep you from looking for something that you knew was there but now can&#8217;t find.<\/li>\n<li>\u261b The pointing finger: Here is a symbol found only in IATA.\u00a0It signifies this section or statement is more restrictive than the ICAO regulations.<\/li>\n<li>\u2605 The star: Another one only found in IATA and at the end of the proper shipping name in the Dangerous Goods List.\u00a0It triggers the need for a technical name on packages and paperwork.<\/li>\n<li>\u2020 The cross or dagger: One more only in IATA and the Dangerous Goods List. When this is used, the shipper should review the description found in Appendix A.<\/li>\n<\/ol>\n<p>For more information you can review Appendix B in <a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/iata\/\"><span style=\"font-weight: 400\">IATA<\/span><\/a><span style=\"font-weight: 400\"> or for <\/span><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/imdg-code\/\"><span style=\"font-weight: 400\">IMDG<\/span><\/a><span style=\"font-weight: 400\"> look<\/span> in Volume 1 in the Foreword.<\/p>\n<h3>Symbols in DOT:<\/h3>\n<ol>\n<li>+ The plus sign: Found in column 1 of the Hazardous Materials Table, it fixes or sets the shipping name, hazard class and packing group for a particular entry based on human experience with the material.<\/li>\n<li>\u2709 The envelope: This is found in ICC\u2019s MANCOMM version of the regulations.\u00a0It tells the shipper there is a letter(s) of interpretation available should questions or more information be needed.\u00a0You can access all letters <a href=\"https:\/\/www.phmsa.dot.gov\/regulations\/title49\/b\/2\/1\">here<\/a>.\u00a0There is a search function on the left side of the site.<\/li>\n<li>\u2756 The \u201cquartered diamond\u201d. Again, in ICC&#8217;s version this is as a way to track recent changes.\u00a0This is helpful given the &#8230; unique way DOT handles their updates and revisions.<\/li>\n<\/ol>\n<p>For information on the plus sign symbol, refer to \u00a7172.101(b)(1) for information. For the ones used in <span style=\"font-weight: 400\">the <\/span><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/us-49-cfr\/\"><span style=\"font-weight: 400\">MANCOMM<\/span><\/a> used at ICC, the symbols are on the first page under &#8220;What\u2019s in this book?&#8221;.<\/p>\n<h3>Symbols in TDG:<\/h3>\n<p>Oddly enough, <a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/canadian-tdg\/\"><span style=\"font-weight: 400\">TDG<\/span><\/a><span style=\"font-weight: 400\"> doesn\u2019t<\/span> really use symbols. They don&#8217;t have any indication of changes other than referring a shipper back to the amendment where it first appeared.<\/p>\n<hr \/>\n<p><big>We can now set out to solve our own &#8220;<em>DaVinci Code<\/em>&#8221; and &#8220;<em>Lost Symbol<\/em>&#8221; with ease.\u00a0If you are a current customer and need some assistance, call us today.\u00a0We can help with all things transport including training, marks, labels, and packaging.<\/big><\/p>\n<p><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/newsletter-signup\/\" target=\"_blank\" rel=\"noopener\">Stay up to date and sign up for our newsletter!<\/a><\/p>\n<h2><em><strong>We have all the products, services, and training you need to ensure your staff is properly trained and informed.<\/strong><\/em><\/h2>\n<table style=\"width: 100%\">\n<tbody>\n<tr>\n<td style=\"text-align: center\"><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/iata\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-853719\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2020\/09\/BK-IATA21-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/iata\/\">IATA Dangerous Goods Regulations<\/a><\/td>\n<td style=\"text-align: center\"><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/us-49-cfr\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-853847 size-thumbnail\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2020\/09\/BK-MANCFRM-2020-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/us-49-cfr\/\">US 49 CFR Publications<\/a><\/td>\n<td style=\"text-align: center\"><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/imdg-code\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-853723 size-thumbnail\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2020\/09\/imdg-code-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/imdg-code\/\">IMO IMDG Code Supplement<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This post was originally published in April 2018 and has been updated in April 2023 for accuracy. As an avid&#8230;<\/p>\n","protected":false},"author":12559,"featured_media":730402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[2365,2413,2494,2661,2740,5073,5074,5076,5078],"tags":[],"class_list":["post-9145","post","type-post","status-publish","format-standard","has-post-thumbnail","category-regulations-cat","category-tdg-regulation-updates","category-iata-and-icao","category-49-cfr-regulation-updates","category-imdg-code-regulation-updates","category-dot-49-cfr","category-tdgr","category-iata","category-imdg"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Symbols in Transportation Regulations - 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\/9145\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Symbols in Transportation Regulations - ICC Compliance Center Inc - Canada\" \/>\n<meta property=\"og:description\" content=\"This post was originally published in April 2018 and has been updated in April 2023 for accuracy. 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