法规速查Regulation Navigator
先看懂要求，再查清依据。Understand the rule. Find its source.
部分资料含历史版本或来源限制。收录日期不代表现行性已复核；请先核对每项官方来源、版本和适用范围。Some records contain historical versions or source limitations. Capture dates do not establish a review of current requirements; check each official source, edition and scope before use.
你正在办理哪件事？What are you working on?
从工作中遇到的事情开始，了解相关要求、常见误会和处理方法。Start with a work situation to understand the requirements, common mistakes and next steps.
驾照与驾驶资格Driver qualifications
从驾照、体检、司机档案和药酒测试记录开始，找到与你当前情况有关的法规入口。Start with the license, medical status, driver file, and drug and alcohol records to find the rules that fit your situation.
工时与驾驶记录Hours & logs
把驾驶、工作、休息和电子日志放在同一条时间线上核对。这里提供查找方向，不替你判断一次具体行程是否合法。Compare driving, work, rest, and electronic logs on one timeline. These paths help you research the rules without deciding whether a specific trip is compliant.
车辆与行车安全Vehicle & road safety
把司机看到的车况与车队保存的检查、维修资料对起来。遇到故障或路检记录时，再进入相应法规来源。Compare the condition observed by the driver with the carrier's inspection and maintenance records. Use the related regulation source when reviewing a defect or inspection record.
经营注册与税费Registration & taxes
先确定公司做什么业务、车辆在哪里运营，再核对需要的联邦和州级记录。不要把一个号码或许可当成全部手续。Identify the business activity and where vehicles operate, then check the relevant federal and state records. One number or permit does not represent every filing.
排放与检测Emissions & testing
先确认具体车辆和使用场景，再进入检测、车队或怠速规则的官方入口。不同项目的登记和记录不能互相替代。Identify the specific vehicle and use before opening the official source for testing, fleet, or idling rules. Registration and records for one program do not replace another.
港口运输Port operations
进港涉及多套凭证和系统。先确认卡在哪一层，再找到对应的港口、车辆或预约资料。Port work involves several credentials and systems. Identify which layer is causing the issue before opening the related port, vehicle, or appointment source.
已经知道法规名称或条号？直接搜索，或Know the regulation or citation? Search above, or 浏览法规索引browse the regulation index。
中文为 CTAC 白话说明，不是官方译文，也不构成个案法律意见。请先核对适用范围、来源版本与最新官方通知。CTAC plain-language explanations are not official translations or case-specific legal advice. Check scope, source editions and current official notices.