| Action Date | Action Description |
|---|---|
| May 09, 2011 | Maintenance Certification Request |
| May 09, 2011 | Application Accepted |
| May 09, 2011 | Maintenance Certification OTC |
| Mar 12, 2014 | Extension Toll letter mailed |
| Aug 18, 2016 | Expiration of Assent/End of Tolling Legislation |
| Jul 17, 2019 | Extension Approved |
| Jun 19, 2020 | Extension Approved |
| Apr 05, 2021 | Extension Approved |