{"uid":"cap_wzD6uHzIXlwrguMEjgQ6n","slug":"sitecheck-trade-energy-hazardous-material-placard-label-codes-7109b098","name":"SiteCheck Trade & Energy – Hazardous Material Placard/Label Codes","description":"Placard / label codes for a hazardous material from the US DOT table (49 CFR 172.101, eCFR), by UN number (e.g. 1203) or name fragment: label codes, hazard class and packing group. Returns the label code numbers as written in the table; it does not give the placard artwork or emergency response guide entries.","url":"https://api.tradeenergy-api.workers.dev/api/logistics/hazardous-placard-id?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["q"],"properties":{"q":{"type":"string","description":"4-digit UN number (1203) or a name fragment of 3 to 60 characters"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":1,"query":"1203","source":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-15/title-49.xml?part=172&section=172.101","matches":[{"name":"Gasoline includes gasoline mixed with ethyl alcohol, with not more than 10% alcohol","unNumber":"UN1203","labelCodes":["3"],"hazardClass":"3","packingGroup":"II"}],"checkedAt":"2026-10-23T09:38:03.153Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_za_HWIjFlCm4Ucej4Al6g","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns DOT placard and label codes, hazard class, and packing group for a hazardous material by UN number or name fragment from 49 CFR 172.101","exampleAgentPrompt":"What are the US DOT placard label codes, hazard class, and packing group for UN 1203 — I need to check the 49 CFR 172.101 table entry for gasoline?","exampleUseCases":[{"title":"DOT compliance check for fuel shipment","prompt":"We're shipping gasoline by truck — can you look up the DOT label codes and hazard class for UN 1203 so we know what placards are required?"},{"title":"Dangerous goods classification by chemical name","prompt":"I need to find the DOT hazard class and packing group for acetone — can you search the 49 CFR table by name and tell me the label codes?"},{"title":"Freight audit for unknown UN number","prompt":"A shipment manifest lists UN 1090 — can you pull the hazard class, packing group, and label codes from the US DOT hazardous materials table so I can verify the documentation?"}],"resultDescription":"Returns a JSON object with the total match count, the original query, a link to the eCFR source, a timestamp, and an array of matching entries each containing: material name, UN number, label codes (as listed in the table), hazard class, and packing group.","failureModes":["No matches found if the UN number is not in the DOT table (empty matches array)","Name fragment too short (under 3 characters) or too long (over 60 characters) may be rejected","Invalid or non-existent UN number returns empty results","Ambiguous name fragments may return many partial matches requiring further filtering","eCFR upstream source unavailable may cause stale or failed responses"],"whenToPreferThis":"Use this endpoint when you need to programmatically look up US DOT 49 CFR 172.101 hazard classification data — label codes, hazard class, and packing group — for a specific UN number or material name. It is the right choice for logistics compliance checks, freight documentation audits, dangerous goods labeling verification, or when building workflows that need structured DOT placard data. It does not provide placard artwork, ERG emergency response guide entries, or international dangerous goods data (IMDG/IATA).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:33:42.935Z","isFirstParty":false,"canonicalSlug":"sitecheck-trade-energy-hazardous-material-placard-label-codes-7109b098"}