Margins for all months of the sulfur dioxide futures contract will be $2,500 for clearing members, $2,750 for members, and $3,375 for customers. Margins for all months of the nitrogen oxide futures contract will be $1,000 for clearing members, $1,100 for members, and $1,350 for customers.
Intra-commodity spread margin rates for the sulfur dioxide futures contract will be $500 for clearing members, $550 for members, and $675 for customers. Intra-commodity spread margin rates for the nitrogen oxide futures contract will be $300 for clearing members, $330 for members, and $405 for customers.
The position accountability levels for the sulfur dioxide and nitrogen oxide futures contracts will be 2,500 contracts for any single month or all months, with the exception of a 200-contract level for the last three days of the expiring contract. Clearing members must identify customers with a position of 25 contracts or more to the Exchange.