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.
法规索引Regulation index
按中文名称了解每条管什么，再展开查看解读与官方原文。Browse by subject, then expand an entry for available explanations and official text.
California Vehicle Code § 21655California Vehicle Code § 21655
面向加州公路上的货车／牵引车，具体规则按车辆轴数、是否拖挂和道路标志确定。联邦安全驾驶规则及临时封路、现场指挥仍需同时遵守。For trucks and truck tractors on California highways, with applicability determined by axle count, towing and signs. Federal safety rules, temporary closures and traffic-control directions also apply.
有指定卡车车道时，按标志行驶Follow designated truck lanes first
- 具体要求What the rule requires
- 受 §22406 约束的车辆及本条规定的其他车辆，有指定车道标志时应使用指定车道；没有指定时一般靠右。分隔公路单向有四条及以上标明的车道，且无其他禁止规定时，也可使用紧邻最右侧的第二条车道。超车、转弯、驶入驶出及必须继续原路线等情况，按条文的具体条件处理。For vehicles subject to §22406 and the other categories specified in this section, use posted designated lanes. Otherwise generally keep right. On a divided highway with four or more marked lanes in one direction, the lane immediately left of the rightmost lane may also be used unless otherwise prohibited. Passing, turns, entering/exiting and necessary route continuation are governed by the specific provisions.
(a) (a) Whenever the Department of Transportation or local authorities with respect to highways under their respective jurisdictions determines upon the basis of an engineering and traffic investigation that the designation of a specific lane or lanes for the travel of vehicles required to travel at reduced speeds would facilitate the safe and orderly movement of traffic, the department or local authority may designate a specific lane or lanes for the travel of vehicles which are subject to the provisions of Section 22406 and shall erect signs at reasonable intervals giving notice thereof.
(b) (b) Any trailer bus, except as provided in Section 21655.5, and any vehicle subject to the provisions of Section 22406 shall be driven in the lane or lanes designated pursuant to subdivision (a) whenever signs have been erected giving notice of that designation. Except as otherwise provided in this subdivision, when a specific lane or lanes have not been so designated, any of those vehicles shall be driven in the right-hand lane for traffic or as close as practicable to the right edge or curb. If, however, a specific lane or lanes have not been designated on a divided highway having four or more clearly marked lanes for traffic in one direction, any of those vehicles may also be driven in the lane to the immediate left of that right-hand lane, unless otherwise prohibited under this code. When overtaking and passing another vehicle proceeding in the same direction, the driver shall use either the designated lane, the lane to the immediate left of the right-hand lane, or the right-hand lane for traffic as permitted under this code.
This subdivision does not apply to a driver who is preparing for a left- or right-hand turn or who is entering into or exiting from a highway or to a driver who must necessarily drive in a lane other than the right-hand lane to continue on his or her intended route.
使用固定来源版次；适用日期与例外以原文及历史沿革为准。Uses a fixed source edition; check the original and statutory history for operative dates and exceptions.
法规原文 · 英文REGULATION TEXT · ENGLISH
California Vehicle Code § 21655California Vehicle Code § 21655
官方来源快照；不代表已核对现行汇编及后续修订。请核对来源版本。Official-source snapshot; current consolidated law and subsequent amendments have not been verified.
展开英文原文Read the English original收起英文原文Hide the English original
CA Vehicle Code § 21655 · California Vehicle Code § 21655
California Vehicle Code § 21655
Amended by Stats. 1988, Ch. 843, Sec. 4.
(a)Whenever the Department of Transportation or local authorities with respect to highways under their respective jurisdictions determines upon the basis of an engineering and traffic investigation that the designation of a specific lane or lanes for the travel of vehicles required to travel at reduced speeds would facilitate the safe and orderly movement of traffic, the department or local authority may designate a specific lane or lanes for the travel of vehicles which are subject to the provisions of Section 22406 and shall erect signs at reasonable intervals giving notice thereof.
(b)Any trailer bus, except as provided in Section 21655.5, and any vehicle subject to the provisions of Section 22406 shall be driven in the lane or lanes designated pursuant to subdivision (a) whenever signs have been erected giving notice of that designation. Except as otherwise provided in this subdivision, when a specific lane or lanes have not been so designated, any of those vehicles shall be driven in the right-hand lane for traffic or as close as practicable to the right edge or curb. If, however, a specific lane or lanes have not been designated on a divided highway having four or more clearly marked lanes for traffic in one direction, any of those vehicles may also be driven in the lane to the immediate left of that right-hand lane, unless otherwise prohibited under this code. When overtaking and passing another vehicle proceeding in the same direction, the driver shall use either the designated lane, the lane to the immediate left of the right-hand lane, or the right-hand lane for traffic as permitted under this code.
This subdivision does not apply to a driver who is preparing for a left- or right-hand turn or who is entering into or exiting from a highway or to a driver who must necessarily drive in a lane other than the right-hand lane to continue on his or her intended route.
依据关联的官方原文及官方项目说明起草。中文和英文解读均为 CTAC AI 辅助工作稿，未经人工审核；教学案例不是实际会员记录。采集日期不是法规生效日期。Drafted from linked official texts and agency guidance. Both language interpretations are CTAC AI-assisted drafts pending human review; examples are illustrative, not member records. Capture dates are not legal effective dates.
California Vehicle Code § 22350California Vehicle Code § 22350
California Vehicle Code § 22406California Vehicle Code § 22406
California Vehicle Code § 23123.5California Vehicle Code § 23123.5
California Vehicle Code § 27459California Vehicle Code § 27459
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.