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2021 A4 Symposium - Registration


Symposium Registration Information

A4 members and non-members are welcome to attend. Please note that you must register for the A4 Short Course separately below. Attendance is limited, so please don't wait to register!

Sessions 1-7 Ticket Pricing:

FREE – A4 Member Registration (with promo code - contact us if you did not receive it by email)
$150 – Non-Member Registration + A4 Membership (One Year)
$100 – Non-Member Registration Only
$50 – SOT Member Registration Only
$40 – Non-Member Student Registration + A4 Membership (One Year)
$25 – Non-Member Student Registration Only

Register Now

A4 Short Course Registration Information

Registration for the A4 Short Course is separate from the Symposium sessions. 

A4 Short Course: Tour de Force of Tools from the US Environmental Protection Agency to Support Assessments of Alternatives

Time: Monday, October 25 at 11:00 AM ET

Ticket Pricing: FREE

Register Here:

Presentation Recordings

The Symposium presentations will be available immediately after the event to A4 members only through a new members-only section of the website. This new section will be launched prior to the Symposium.


Cancellations and Refunds

All registration cancellation and refund requests must be done online through Eventbrite. No refunds or credits will be granted after October 20, 2021. Anyone who is registered but cannot attend may send a substitute; please contact to communicate changes to an existing symposium registration.