Who May Register?
Any user can enter data challenges into the system including: general public users,
commercial drivers, motor carriers, FMCSA/State Agency users, and FMCSA Administrative
level users.
Commercial drivers may file challenges to their commercial driver data. To obtain
their data, commercial drivers may request the information via the
pre-employment screening program (PSP) or
Freedom of Information Act (FOIA) websites.
Motor carrier users may file challenges to data found on their carrier profile,
SAFER information, and SafeStat Online record.
What Data Is Subject To A Challenge?
The DataQs system is to be used to challenge data issued by FMCSA. Information
disseminated by the FMCSA includes data reported to FMCSA
through the requirements of Federal and State programs. Release of
these data is done in the interest of information exchange and to
satisfy the requirements of the Freedom of Information Act. The
United States government assumes no liability for the use of the data.
With respect to crash and roadside inspection data, the MCMIS documents the
occurrence and results of these events as reported by the States.
Any challenges to data provided by State agencies must be resolved
by the appropriate State agency. Once a State office makes a
determination on the validity of a challenge, FMCSA considers
that decision as the final resolution of the challenge. FMCSA
cannot change State records without State consent.
How Do I Register For DataQs?
All users are required to register with the DataQs system. Click on the “Register
Online” button and submit the registration form. You will return to the login page
where you can enter your user name and password to access the system.
- Commercial Drivers are required to select “Commercial Driver” under the
Organization Type selection.
- Motor Carriers are required to select “Motor Carrier” under the Organization
Type selection. Motor Carrier users may 'validate' their account by entering their
FMCSA provided Personal Identification Number (PIN).
- State or Federal Agency level users must complete and submit the FMCSA
Information Technology Account Request Form. This Form is available from FMCSA's
Technical Support Website at http://fmcsa-ts.dot.gov. Once on this site, access
the form via the Technical Support Tab.
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User Guide and Manual (Best Practices for State Agency Users) 
DOWNLOAD (11.86 MB)
A practical guide for Federal and State data quality practitioners
The DataQs Users Guide and Best Practices Manual describes standardized processes and techniques to address and resolve Requests for Data Reviews (RDRs) generated by commercial drivers, motor carriers, FMCSA and State Agency users, and others, when submitted electronically to FMCSA’s DataQs website. The document is designed primarily to assist FMCSA and State Agency DataQs practitioners by providing straightforward, uniform, consistent, and reliable procedures for reviewing and resolving data quality inquiries. The document delineates best practices, offers tips for implementing these practices, and references a comprehensive resource guide to facilitate data integrity and consistency.