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Better Brakes Enforcement Study, 2022

Publication number Date Published
23-03-028December 2023
VIEW NOW Better Brakes Enforcement Study, 2022 (Number of pages: 24) (Publication Size: 701KB)

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Author(s) Salamone, A. & L. Smith
Description Washington State’s Better Brakes Law, Chapter 70A.340 RCW, establishes restrictions on using certain toxic metals and asbestos in brake friction materials sold to people in Washington state. The law limits the use of asbestos, chromium (VI), lead, and mercury to less than or equal to 0.1% (1000 ppm), cadmium to less than or equal to 0.01% (100 ppm), and copper to less than or equal to 5% (50,000 ppm) in brake friction materials manufactured after January 1, 2021.

In 2022, the Washington State Department of Ecology conducted a study to assess the levels of cadmium, chromium(VI), lead, mercury, antimony, nickel, and zinc in brake friction materials. Ninety-nine brake products (brake pads and shoes) were purchased and tested for the study. The brake products collected represented a wide range of passenger, commercial, special use vehicles, original equipment, and aftermarket equipment.

When results were averaged, no brake friction material components tested in this study contained cadmium above the 100 ppm regulatory limit or chromium(VI), mercury, or lead above the 1,000 ppm limit. Five brake friction material components tested and labeled with manufacture dates after January 1, 2021, contained averaged results for copper above the current regulatory limit of 50,000 ppm. There are no regulatory limits for antimony, nickel, or zinc in brake friction materials.
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Keywords Nickel, Brakes, brake pads, antimony, product testing, better brakes, metals, zinc, mercury, lead, copper, cadmium, chromium
WEB PAGE Testing for chemicals in consumer products

Quality Assurance Project Plan: Better Brakes Enforcement Study, 2022