Certification in the transportation of dangerous goods (TDG), first aid, firefighting, or workplace hazardous materials information system (WHMIS) may be required.
可能需要危险货物运输(TDG)的认证，急救，消防，或工作场所有害物质信息系统(WHMIS)。
Certification in the transportation of dangerous goods (TDG), first aid, firefighting, or workplace hazardous materials information system (WHMIS) may be required.
可能需要危险货物运输(TDG)的认证，急救，消防，或工作场所有害物质信息系统(WHMIS)。
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