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Registry Access, Accuracy and Support

As a replacement of the TSIN Registry, OATI webRegistry operates as an industry-wide information-access tool and offers significantly improved performance, usability, and flexibility over the previous standard. OATI webRegistry offers:

  • Improved information access and retrieval through comprehensive and tailored registry queries
  • Enhanced accuracy of current and historical data in the registry through data cleansing and support for quality control processes
  • Superior uptime and reliability with 24x7x365 support via the OATI Help Desk

OATI webRegistry brings updated features including new validation rules, models service-point relationships, and allows for complex entity ownership structures. OATI webRegistry leverages OATI’s experience delivering mission critical software applications and access to information, while complying with energy industry standards for cyber security, reliability, availability, and reporting.



  • Special webCARES Digital Certificate Offer for NYISO Market Participants