[Eric in the Ozarks]

I happen to know that one of the targeted power plants has received a demand to upgrade to best available technology based solely on the repair of a steam line.
New Source was initially designed to cover expansions, not maintenance.
I've been in the energy biz since 1980 and am aware of the history of NSPS.

[Ben Ficklin]

They went after one in Texas over the baghouse filters.