Go to the Contra Costa County Library website and in the top right corner click on “Log In/My CCCLib” menu to access your account.
Click on the "Forgot your PIN" link on the Login page to receive an email to reset your PIN.
If that does not work or if you did not receive an email, you will need to visit any branch in the Contra Costa County Library system and ask staff to reset the PIN on your account. Please be prepared to present your library card and ID.