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Welcome to the
Municipal Securities Rulemaking Board

The MSRB protects and strengthens the municipal bond market, enabling access to capital, economic growth, and societal progress in tens of thousands of communities across the country.

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What’s New at the MSRB?

Publication
April 2025 Market Recap
May 8, 2025
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Press Releases
MSRB Discusses Market Regulation and Transparency Initiatives at…
April 25, 2025
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Press Releases
MSRB Announces Agenda Topics for Quarterly Board Meeting
April 16, 2025
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Publication
First Quarter 2025 Municipal Securities Market Summary
April 7, 2025
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Publication
A Comparison of Transaction Costs for Municipal Securities and…
March 18, 2025
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Press Releases
MSRB Board Authorizes Further Amendments to Rule G-14, Withdraws…
March 7, 2025
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Publication
Convergence of Individual and Institutional Trading Dynamics in…
February 27, 2025
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Publication
What Drives Trading Volume in the Municipal Securities Market? A…
February 13, 2025
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Notice
Delayed Announcement of Effective Date for Amendment to MSRB Rule…
February 5, 2025
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MSRB Rules & Interpretive Guidance

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Requests for Comment, Notices &
Compliance Resources

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How we fulfill our mission:
beyond rulemaking

Data & Research

MSRB data sets and original research help deepen understanding of municipal market trends.

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Education

MSRB resources empower investors and issuers to make informed decisions and facilitate compliance for regulated entities.

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Expertise

The MSRB is governed by a board of market experts and supported by a team of professional staff.

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Report a Complaint

Learn how to report a municipal market complaint.

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Electronic Municipal Market Access

The MSRB’s free EMMA website serves as the official
source for municipal securities data and documents.

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Electronic Municipal Market Access Labs

Explore our innovation sandbox and co-create
the future of market transparency.

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