Rule Summary: Requires dealers to provide customers with written confirmations of transactions, containing specified information, including mark-ups and mark-downs, and prescribes certain uniform practice procedures for dealers that transact municipal securities business with customers.

Rule Summary: Prohibits dealers from improperly using municipal securities or funds held on behalf of another person, guaranteeing customers against loss in customer accounts and transactions, and sharing in profits and losses of customer accounts and transactions by any dealer.