CVC 22356: Basic Speed Law

California Vehicle Code (CVC) Section 22356, often referred to as the "Basic Speed Law," sets the maximum speed limit on certain California highways where there are no posted speed limit signs. Here's an explanation of CVC 22356:

CVC 22356 - Basic Speed Law:

1. Maximum Speed Limit (Subsection (b)):

   • CVC 22356 establishes that the maximum speed limit on California highways, where no specific speed limit is posted, is 65 miles per hour (mph). This means that unless otherwise posted, drivers should not exceed 65 mph when traveling on these highways.

2. Prima Facie Speed Limit (Subsection (a)):

   • Subsection (a) of CVC 22356 states that the maximum speed limit set in Subsection (b) is considered the "prima facie" speed limit. A prima facie speed limit is a presumed or default speed limit that drivers are expected to follow unless conditions make it unsafe to do so.

3. Adjusting Speed for Safety (Subsection (a)):

   • Subsection (a) also indicates that drivers must adjust their speed to conditions that may require a slower speed for safety. This means that even if the speed limit is 65 mph, drivers must reduce their speed when road, weather, or traffic conditions make it necessary to do so to prevent accidents.

4. Minimum Speed Limit (Subsection (c)):

   • Subsection (c) specifies that no person should drive a vehicle upon a highway at such a slow speed as to impede or block the normal and reasonable movement of traffic. This means that even if the speed limit is 65 mph, a driver going significantly slower than this may be cited if they are causing a traffic backup or hazard.

5. Exceptions (Subsection (d)):

   • Subsection (d) of CVC 22356 outlines certain exceptions to the maximum speed limit. These exceptions include:
     • When obeying the maximum speed limit would be unsafe due to specific weather conditions, such as rain, fog, or ice.
     • When obeying the maximum speed limit would impede the normal flow of traffic, such as when driving at a slower speed than other vehicles on the road.

6. Penalties for Violation (Subsection (e)):

   • Violating CVC 22356 by driving over the maximum speed limit or failing to adjust your speed to match road conditions can result in traffic citations, fines, and potential points on your driver's license.