All events and race meetings promoted Grassroots Enduro Australia Pty Ltd are conducted by and governed by the Australian Motorcyclist Association.
In order to participate and volunteer you must be or become a member of the A.M.A.
STEP 1: Volunteering memberships incurs no cost, all memberships can be found here https://www.membership.asn.au
STEP 2: As you are aware motorcycling can be hazardous and could result in injury or death, you wish may to consider the Accident Plans on offer, as with any insurance check the terms & conditions along with the product disclosure statement to ensure any insurance meets your needs.
This information is only visible once you have created a free account with A.M.A https://www.membership.asn.au/members-area/medical/accident-plans