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Register online through Ex Ordo. Create an account if you do not already have one (note, if you had an Ex Ordo account for 2019 or 2021 you can use the same account).

Note: If you would like to do a bulk registration, each person must be registered individually. To pay later, please choose bank transfer at the Checkout step. Ex Ordo allows you to register on behalf of other delegates.

The cost of registration includes attendance at all oral and poster sessions; morning tea, lunch and afternoon tea each day (Monday to Thursday); a ticket to the Welcome Function on Sunday 9 July; and a ticket to the Gala Awards Dinner on Wednesday 12 July.

Early bird registration (available until 31 March 2023)

Early bird regular $950 AUD

Early bird student and retired $650 AUD

Regular registration

Regular $1050 AUD

Student and retired $750 AUD

Registration dates

Early Bird Registration 31 March 2023

All presenting authors to be registered by 18 May 2023

Last day to register 28 June 2023

Refund of registration policy for cancellations

Before 31 March 2023: Registration will be refunded, minus 10% for administration.

Before 28 June 2023: 50% of registration will be refunded.

After 28 June 2023: No refund will be made.


If your paper / extended abstract is not accepted by us for presentation at the congress, we will refund your registration in full if you decide not to attend. Note that we do not guarantee an oral presentation and your paper / extended abstract may be accepted as a poster presentation.

If you have registered to attend MODSIM2023 and changes to official COVID-19 restrictions (imposed by a state or federal government) prevent you from attending, we will refund your registration.