| Action Date | Action Description | 
|---|---|
| Dec 23, 2014 | Maintenance Certification Request | 
| Dec 23, 2014 | Application Accepted | 
| Dec 23, 2014 | Permit Approved | 
| Dec 23, 2014 | Category A assigned | 
| Jan 28, 2015 | Assent Correction Mailed | 
| Jul 19, 2018 | Expiration of Assent/End of Tolling Legislation |