Not to speak for the OP, but just as an exemplar, here is information for the State of Arizona (AZ).

The State links are found by looking at the "Links" column on the left hand side of the forum (or visiting the Davidson Database), and clicking on "How gifted-friendly is your state?"

In the example of this randomly chosen State, the question "Does gifted education legislation exist?" is answered "Yes", and a link to that State's legislation is provided (15-779 definitions, 15-779.01, 15-779.02, 15-779.03, 15-779.04).

In preparation for advocacy, it is important to become familiar with State laws, and school/district policies.

There are several articles about successful advocacy on the Davidson Database, including the Guidebook.