| Abstract Submission Opens | March 1, 2021 | |
| Exhibit Registration Opens | March 22, 2021 | |
| CEC Samuel C. Collins Award Nomination Deadline | March 29, 2021 | |
| Conference Registration Opens | April 12, 2021 | |
| Abstract Submission Deadline – extended | April 26, 2021 | |
| Joint CEC and ICMC Student Fee Waiver Program – Extended Abstracts Due | April 30, 2021 | |
| ICMC Lifetime Achievement Award Nomination Deadline | May 1, 2021 | |
| ICMC Cryogenic Materials Award for Excellence Nomination Deadline | May 1, 2021 | |
| Program Meeting | May 14, 2021 | |
| Cryogenic Society of America Awards Nominations Deadline | May 21, 2021 | |
| Emailed Notification of Abstract Acceptance | May 25, 2021 | |
| CEC Board Election Nominations Deadline – extended | May 28, 2021 | |
| CEC Klaus & Jean Timmerhaus Scholarship Award Application Deadline | May 31, 2021 | |
| CEC Donna Jung Scholarship Award Application Deadline | May 31,2021 | |
| Early Registration Fee Deadline – extended | June 8, 2021 | |
| Registration and Exhibit Registration Cancellation Deadline | June 18, 2021 | |
| Exhibit Registration Closes | July 2, 2021 | |
| Conference Registration Closes | July 14, 2021 | |
| CONFERENCE | July 19 – 23, 2021 | |
| Manuscript Submission Site Opens | August 5, 2021 | |
| CEC Board Votes Due | July 20, 2021, 5:00 p.m. | |
| ICMC Student Meritorious Paper Award Application Deadline | August 8, 2021 | |
| Manuscript Submission Deadline | August 15, 2021 |