MSRB Systems Status

System Name System Status System Status Update
Electronic Municipal Market Access (EMMA)
EMMA Dataport
MSRB Gateway

Real-Time Transaction Reporting System (RTRS)
Short-term Obligation Rate Transparency (SHORT) Data Submissions
Trade Data Subscription Service
SHORT Data Subscription Service
Primary Market Subscription Service
Continuing Disclosure Subscription Service

MSRB Systems Status History

The MSRB Systems Status History provides a historical listing of incidents that affected normal operations for some or all users of the MSRB's Market Transparency systems, including EMMA, RTRS, SHORT and MSRB Gateway.

MSRB Support

For assistance, contact MSRB Support at 703-797-6668 or

Live Support: 7:30 a.m. - 6:30 p.m. ET

Email Support: 7:00 a.m. – 7:00 p.m. ET

The MSRB maintains 7:00 a.m. to 7:00 p.m. Eastern Time as core operational hours on business days, which exclude weekends and holidays identified on the MSRB System Holiday Schedule*. Subject to the right of the MSRB, it may make any system unavailable outside of core operational hours for required maintenance, upgrades or other purposes to ensure the integrity of EMMA and its systems. The MSRB shall provide advance notice, as practicable, of any planned period of unavailability. Note, information provided on this page does not apply to the MSRB’s test environments. The MSRB’s Business Continuity Plan governs the MSRB’s response to significant service disruptions to its Market Transparency systems.

*For additional information regarding procedures for submission of information under MSRB rules surrounding non-business days, click here.