System Updates for Fuels Registration

Overview

EPA’s Fuels Registration System (OTAQREG) undergoes frequent modifications to reflect regulatory changes, to streamline the registration processes, and to improve the user experience. This web page provides release notes and identifies known issues for the OTAQREG system.

Release Notes

• OTAQREG v7.3.0 - Released May 15, 2025
• OTAQREG v7.2.0 - Released April 24, 2025
• OTAQREG v7.1.0 - Released April 10, 2025
• OTAQREG v6.7.0 - Released October 21, 2024
• OTAQREG v6.6.0 - Released October 4, 2024
• OTAQREG v6.4.0 - Released August 9, 2024
• OTAQREG v6.3.0 - Released March 29, 2024
• OTAQREG v5.1.3 - Released September 8, 2023
• OTAQREG v5.0 - Released February 24, 2023
• OTAQREG v4.0.8 - Released August 26, 2022
• OTAQREG v3.0 – Released April 14, 2021
• OTAQREG v2.1.0 – Released December 11, 2020
• OTAQREG v2.0 – Released July 22, 2020
• OTAQREG v1.3 – Released August 24, 2018
• OTAQREG v1.2 – Released July 13, 2018
• OTAQREG v1.1 – Released June 25, 2018

Known Issues

• When viewing a submitted registration request that is pending EPA activation, there is no 'Printer-Friendly' version.