The good news is that the Seal of Biliteracy has already been established statewide! SealofBiliteracy.org
This website includes a series of extremely helpful tools and steps to implement the Seal in your school, including sample documents and best practices from other districts that have successfully done so. It will walk you through how to determine criteria for awards, develop outreach strategies and an application process, how to award students, and how to spread the word about these important projects.
See http://sealofbiliteracy.org/steps for more information!
Meanwhile, there is often funding and support available to jumpstart implementation of World Language Credits in a school system.
You may be able to email email@example.com for assistance establishing local testing.
If you would like additional resources for Language Testing and Staff Development, you will find more information in our Educator Toolkit available for download on this page as well.