916.857.6900, and http://www.pacificjustice.org/request-legal-assistance.html
Or you can get the six page document from the FairTest website here,
http://fairtest.org/sites/default/files/GeneralOptOutGuidewFormLetter_0.pdf
If your school tries to tell you they may lose funding if they do not have 95% participation on the SBAC remind them that New York had 20% opt out statewide, with some districts between 70-80% of students opting out of Common Core tests. New York will NOT be losing any federal funds for opt-outs. If any school, school district, or state looses federal funds for opt-outs it would be precedence setting, and it is VERY unlikely.
Thanks to the Nevada Department of Education your school may tell you they will become a One Star School if they do not have 95% participation on the SBAC (Click here for the Participation Letter). If they do, let them know our goal is to have EVERY school in the state have over 5% of students refuse to take the SBAC test. Please note, many teachers will support you in your decision to refuse the test.