Are chains required on the inside “duals” on 2-axle vehicles (trucks, buses, RVs, etc.)? These routes are marked with posted signs indicating the restriction. There are some areas where such combinations are prohibited when chain controls are posted. Are combinations consisting of a 2-axle tractor (single drive axle) and double trailers prohibited from chain control areas? While they are legal in California and have been approved as a direct one-on-one replacement for conventional chains, vehicles with only ATD's may be required to add additional chains to outside wheels to comply with the California Chain Requirements Chart.ĭiagrams illustrating chain placement: Chain Requirements (PDF). These devices can be deployed by the driver when the need for extra traction is required. ATD's are devices mounted under the vehicle that sling chain segments under the inside drive wheels. What are Automatic Traction Devices (A.T.D.'s) and are they legal in California?Īutomatic Traction Devices (A.T.D.'s) are used primarily on commercial vehicles, emergency vehicles, and busses. Tire traction devices are defined in the California Vehicle Code (VC) Section 605 as “devices or mechanisms having a composition and design capable of improving vehicle traction, braking, and cornering ability upon snow or ice-covered surfaces,” and include conventional link-type tire chains and cable chains, as well as other less conventional devices such as “Spikes Spyder.” When the term “chains” is used here, it means any “tire traction device” unless it specifically states link-type chain. The exceptions will be posted on the sign. Depending on the severity of road conditions, some vehicles (passenger cars, 4-wheel drive vehicles with snow tires) may not be required to install chains at that point. When the road is posted with a sign requiring chains, all heavy-duty vehicles (over 6,500 pounds gross weight) must be equipped with chains mounted on the tires in order to proceed. Road Conditions - current road conditions, including chain requirementsįrequently Asked Questions What are the dates for the chain law?Ĭalifornia does not have any specific dates when vehicles are required to carry chains.Chain Controls - types of chain controls and snow-tread tire information.Chain Requirements (PDF) - diagrammed instructions for applying chains to your vehicle.Use the Search and column sort capability to filter results, e.g., a desired name or year. Usage note: click each event to expand that list, and increase the “Show” count to further elongate the list beyond the top 10 marks. Olivia Firsching, Claire Hobrock, Hannah Labrie-Smith, Dani JohnsonĮmily Russo, Ella Echsner, Hannah Riggins, Paige Echsner Expand each event group further below to see a longer list of top performances.ĭanita Young, Judy Reed, Katie Gaston, Jewell Lovelady Here is a summary of the top all-time mark in each event. Lucky for me and track competitors, coaches, and fans, when I left the newspaper in 1972, Steve Brand picked up the baton about two years later. My newspaper, the Evening Tribune, published record books in 1965 and ’71. I (Rick) started compiling a track best marks list in 1960. His all-time list inclusive of 2023 is now available here. Steve Brand has been covering track and field for The San Diego Union-Tribune since 1974 and updates an all-time best marks each year.
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