菜单
Use when identifying or classifying a material. Covers the structure of the Hazardous Materials Table (HMT), the columns and what each means, and how to look up shipping requirements.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
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npx skills add https://github.com/x3allamerican/hazmat-skills --skill hazardous-materials-table-49cfr-172-101命令会保持在同一行。复制前请横向滚动并检查完整内容。
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基于 SOC 职业分类
| name | hazardous-materials-table-49cfr-172-101 |
| description | Use when identifying or classifying a material. Covers the structure of the Hazardous Materials Table (HMT), the columns and what each means, and how to look up shipping requirements. |
The HMT (49 CFR 172.101) is the master lookup table. Every hazmat has an entry. Find the entry, you find every requirement.
10 columns. Column 1: symbols (proper for international, exception, etc.). Column 2: Hazardous Materials Description and Proper Shipping Name. Column 3: Hazard class or division. Column 4: ID number (UN/NA). Column 5: Packing group. Column 6: Label codes. Column 7: Special provisions. Columns 8a-c: Packaging exceptions, non-bulk, bulk. Columns 9a-b: Quantity limitations. Column 10: Vessel stowage requirements.
UN = United Nations 4-digit identifier (international). NA = North American (US-only). Most modern hazmat uses UN. Examples: UN1203 (gasoline), UN1075 (LPG), UN1090 (acetone).
I (great danger — most strict). II (medium danger). III (minor danger). Determines packaging requirements + quantity limits.
Find the proper shipping name in column 2 OR find the UN number in column 4. Read across the row for all requirements.
Most-overlooked column. Specifies exemptions, exceptions, additional requirements. Examples: '129' (overpacking), '173' (bulk packaging limit), 'IB1' (IBC code).
Applied in the X3 Compass Hazmat Center — the vertical add-on for hazmat-hauling motor carriers.