法规速查Regulation Navigator
从正在处理的运输事项出发，阅读法规解读，查找原文与官方来源。Start with the trucking task at hand, read an explanation and find the regulation and official sources.
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.
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.
短途工时例外与适用条件Short-haul exceptions and conditions
短途记录例外有运行半径、返回时间、休息和时间记录等条件。满足记录例外后，司机仍须遵守适用的驾驶时限。Check the radius, return/release time and carrier time records before using the short-haul recordkeeping exception. Short-haul does not mean unlimited driving.
ELD 修改、故障与未归属驾驶ELD edits, malfunctions and unidentified driving
更正 ELD 日志时须保留原始记录，并按实际驾驶情况确定归属。设备故障与一般数据诊断提示的处理要求不同，使用纸质日志前应弄清发生了哪种情况。Logs can be corrected without erasing the original record. Resolve actual driving attribution, then distinguish an ELD malfunction from a data diagnostic event.
车辆维修、定期检查与 BITMaintenance, periodic inspections and BIT
日常维护、定期检验和加州 90 天检查，适用车辆与周期各不相同。制定维护计划时，应写明每辆车需要哪些检查、何时到期，以及记录须保存多久。Routine maintenance, periodic inspection and California’s 90-day inspections have distinct rules. Schedule the applicable vehicles, intervals and retention periods separately.
轮胎、灯光与应急装备Tires, lamps and emergency equipment
出车时须检查轮胎、灯光和应急设备，找出影响安全的缺陷。单项达到最低标准，还不能证明整辆车都能安全运行。Start with defects that affect safety, then check tires, lights and emergency equipment. Meeting one numerical minimum does not establish that the whole vehicle is safe.
货物固定与装载后检查Cargo securement and en-route checks
货物固定要同时满足防移动、强度和绑带数量要求。装好后还要按适用规则在途中复查。Cargo securement must satisfy movement prevention, strength and tiedown-count requirements together. Reinspect during the trip where the rules require it.
加州载重、尺寸与超限许可California weights, dimensions and permits
规划运输路线时，应掌握车辆尺寸和分轴重量，并查明沿途通行条件。即使总重未超标，轴组、轮胎、长度或地方限制仍可能影响通行。Measure dimensions and axle loads before checking the route. An acceptable gross weight does not rule out an axle-group, tire, length or local restriction.
加州限速、车道与雪链California speed, lanes and tire chains
加州重卡须遵守相应限速和车道规定，并随天气、路况及交通管制调整驾驶。雪链安装和手机操作也有适用条件，不能直接照搬小客车的做法。In California, check the applicable truck speed limit and lane designation, then adjust for conditions and controls. Do not assume passenger-car chain or phone practices apply to a heavy truck.
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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.