As the 2021 Space and Missile Defense Symposium approaches, the health and safety of our attendees, staff, speakers and exhibitors remains our top priority. The Centers for Disease Control and Preventionrecommends all individuals wear a mask indoors, in public, in areas of substantial or high transmission levels to maximize protection and prevent spreading to others. In consultation with our industry and government stakeholders, the SMD Executive Committee requires all individuals to wear a mask at the 2021 SMD Symposium, regardless of vaccination status. You must wear a mask to enter. Masks must be worn for the duration of the symposium, unless you are eating, drinking or speaking on stage at the podium. Please frequently sanitize your hands and practice social distancing where possible. We look forward to hosting you safely in Huntsville, and we will continue to monitor guidance from the CDC and the Alabama department of Public Health to maintain the health and safety of our guests.