| Early-bird Registration | Jan. 1, 2022 – Feb. 28, 2022 |
| Regular Registration | Mar. 1, 2022 – May 31, 2022 |
| Late/on-site Registration | Jun. 1, 2022 – Aug. 11, 2022 |
| Registration changes: virtual -> in-person in-person -> virtual | by Jun. 30, 2022 |
Important note: With a virtual registration, you are allowed to submit abstracts for I-posters only.
Registration and abstract submission have to be done solely through the XXXI IAU General Assembly website, http://www.iauga2022.org.