FINRA - Proposed Rule Change to Extend the Implementation of FINRA Rule 4240 (Margin Requirements for Credit Default Swaps)
The margin requirements for Credit Default Swaps are summarized in The Guide to Broker-Dealer Regulation, Margin Chapter. This proposal would extend the current regime under FINRA Rule 4240 (although that is of limited significance as firms do not ordinarily book CDS into registered broker-dealers and this will all eventually be redone when the SEC's rules implementing Dodd-Frank come into effect.
View release in full here (links externally to FINRA website).