Rule Summary: Requires dealers to use reasonable diligence to ascertain the best market for the subject security and buy or sell in that market so that the resultant price to the customer is as favorable as possible under prevailing market conditions.

Rule Summary: Requires underwriters to submit certain information to the Electronic Municipal Market Access (EMMA®) system and dealers to provide certain information to customers in connection with primary offerings.

Rule Summary: Establishes the core standards of conduct and duties of municipal advisors when engaging in municipal advisory activities (as defined in this rule).