17 C.F.R. § 38.252

For physical-delivery contracts, the designated contract market must demonstrate that it:

(a) Monitors a contract's terms and conditions as they relate to the underlying commodity market and to the convergence between the contract price and the price of the underlying commodity and show a good-faith effort to resolve conditions that are interfering with convergence; and

(b) Monitors the supply of the commodity and its adequacy to satisfy the delivery requirements and make a good-faith effort to resolve conditions that threaten the adequacy of supplies or the delivery process.