The MSRB collects municipal market data, disclosures and statistics and makes them available to investors and the public for free, primarily through the MSRB's EMMA website.
The MSRB is an independent, neutral source of municipal market data.
Data and disclosure documents available for free on the EMMA website are also available on a subscription basis in real-time for a fee.
Learn about submitting information to the MSRB's market transparency systems.
Learn how to use MSRB market transparency systems to submit disclosures and data.
Log in to MSRB Gateway to securely submit data and documents to the MSRB.
The MSRB's Electronic Municipal Market Access (EMMA) website is the official source for municipal disclosures and market data.
Access resources for municipal market investors and state and local governments.