Based on the estimated time periods needed to complete each of the four phases described above , the estimated time period to complete the implementation of ACI on one combustion unit is about 15 months , as shown in Exhibit A-5 in Appendix A. Since the permitting process limits the timeline , a faster permitting process will shorten the time necessary to install ACI on a single unit .
There is no guarantee that the implementation will be done by that time .