The SOLSTICE Proposers’ Day is a hybrid meeting with limited seating for in-person attendees. The event will be broadcast via the Webex video conference platform for remote attendees. Only two attendees per organization or research group will be permitted to attend in person. Details of the venue will be sent to those who are approved to attend in-person. Additional attendees will only be allowed to participate remotely. For planning purposes, the venue is located in northwest Washington, DC. A recorded video of the meeting will be made available to the public on the IARPA website at https://www.iarpa.gov/index.php/research-programs/SOLSTICE To attend, participants must register prior to Thursday, April 4, 2024, at noon EDT. Same-day registrations will not be accepted. For more information on the opportunity, visit the IARPA Program Page or the sam.gov announcement.