April 28 meeting will be online and hosted at the Johns Hopkins University Bloomberg Center, 555 Pennsylvania Ave NW, Washington DC, and April 29 / 30 events will be online and hosted at Kossiakoff Center at Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, accessed via Pond Road. Optional round-trip transportation provided with option selected at registration.

No charge for online attendance. Registration for in-person attendance is open until April 5, for online attendance of a Foreign National until April 12, and online for USA citizen is until April 24.