Good starting point would be RISA in your state. Let us know how you do as others may be interested in this info.
just got back home so will add to the above. You could try email the Secretary of a club as he controls the racing data, info, etc until raceday when the responsibility is transferred to the Stewards in charge of the meeting. They have to check every runner is carrying each piece of gear required and only notifies the public of Changes. So the Secretary of each club is the starting point. Personally I would phone them and explain what you want and why. Hope this helps.