This is part of a message I just received from Joe Moell, K0OV, the ARRL ARDF Co-ordinator.
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3. Contributions are now being accepted for Team USA 2000 expenses. Checks should be made out to "ARRL ARDF Support Fund" and sent to Barry Shelley N1VXY at ARRL Headquarters in Newington. Feel free to solicit your friends, benefactors and local ham radio clubs. Contributions are tax deductible. (Of course this assumes that the donor is not personally limited by IRS maximums, etc.)
4. Rules for disbursements of the funds to the team are still being worked out. By the way, don't get the idea that you can donate the price of your China flight to ARRL and then get the money back from the fund to have a write-off of your trip. I'm sure there is some sort of IRS regulation that prohibits this.