However, EPA's modeling under the Clear Skies Act projects that the units installing ACI will not be installing PJFFs.
Units that install ACI are very likely to install PJFFs according to the EPA.  
mnli hypothesis: Units that install ACI are very likely to install PJFFs according to the EPA.   premise: However, EPA's modeling under the Clear Skies Act projects that the units installing ACI will not be installing PJFFs.