Rule Summary: Requires dealers to effect transactions in municipal securities with customers at fair and reasonable prices, if acting as principal, and to make reasonable efforts to obtain fair and reasonable prices for customers and to charge fair and reasonable commissions, if acting as agent.

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).