40 CFR § 410.15 - New source performance standards (NSPS).
§ 410.15 New source performance standards (NSPS).
Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
1 Within the range 6.0 to 9.0 at all times.
Note: Additional allocations for “commission scouring” are not available to new sources.