Futures Trading Rules Chapter 3 Conduct of Members, Approved Traders and Representatives 3. Conduct of Members, Approved Traders and Registered Representatives 3.4 Trading Practices and Conduct Rules of Members, Approved Traders and Registered Representatives 3.4.4 Duty to Inform Exchange of Prohibited Trading Practices A Member, Approved Trader or Registered Representative shall immediately inform the Exchange if it reasonably suspects, or knows of, any commission or attempted commission of the acts prohibited under Rules 3.4.1, 3.4.2 and 3.4.3.