Is 'However, SCR installations designed to comply with the NOX SIP Call are generally already into the installation process or, at a minimum, into the engineering phase of the project.' a fitting logical lead-up to 'SCR installs only have NOX SIP to comply with.'
However, SCR installations designed to comply with the NOX SIP Call are generally already into the installation process or, at a minimum, into the engineering phase of the project.###SCR installs only have NOX SIP to comply with.