If you came here looking for IARU Region 2 ARDF rules, then surprise! There aren’t any Region 2 ARDF rules! As of this writing, the Region 2 organization has not appointed a committee or working group with the authority to govern the sport, including establishing rules. Therefore that authority falls to the IARU Region 2 member societies for the events that they sanction.
New ARRL Rules Document
The ARRL ARDF Committee has established a baseline USA ARDF Rules document for use at ARRL-sanctioned ARDF events. With your constructive feedback, that document can evolve to better promote the sport in the USA and throughout the Americas. Give it a look and provide feedback to the ARRL ARDF Committee.