An official website of the Washington state government
The .gov means it's official.
A .gov website belongs to an official government organization in the United States.
This site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
This dataset contains information reported as part the Better Brakes Law, Chapter 70.285 RCW. It contains data tracking the concentrations of copper, nickel, zinc, and antimony in certified brake friction materials. It will first be updated in 2014