By Mail or In Person: San Bernardino County Registrar of Voters. 777 E. Rialto Avenue, San Bernardino, CA 92415.We'll detail everything you need to know about how to invite a guest speaker, from the earliest planning stages to drafting a formal speaker invitation letter. On behalf of the XYZ and the XYZ Organizing Committee, we are honored to invite you to speak at the XYZ event celebrating Cybersecurity Career Week (CCW). If you are interested in having someone from the Superior Court of San Bernardino County speak to your group or organization, please complete the form below. We are excited to invite you to join us as a featured speaker at this event. Letter of Invitation to a guest speaker - Free download as Word Doc (. Below is a sample invitation to an event that you can send to a legislator or candidate. Anyone who wishes to address the Board of Trustees on an agenda or nonagenda item may do so pursuant to Board Policy 2350 Speakers. It will explain the different ways you can fill out the Census.