[Code of Federal Regulations]
[Title 40, Volume 14]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR76.6]

[Page 443]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 76--ACID RAIN NITROGEN OXIDES EMISSION REDUCTION PROGRAM--Table of Contents
 
Sec. 76.6  NOX emission limitations for Group 2 boilers.

    (a) Beginning January 1, 2000 or, for a unit subject to section 
409(b) of the Act, the date on which the unit is required to meet Acid 
Rain emission reduction requirements for SO2, the owner or 
operator of a Group 2, coal-fired boiler with a cell burner boiler, 
cyclone boiler, a wet bottom boiler, or a vertically fired boiler shall 
not discharge, or allow to be discharged, emissions of NOX to 
the atmosphere in excess of the following limits, except as provided in 
Secs. 76.10 or 76.11:
    (1) 0.68 lb/mmBtu of heat input on an annual average basis for cell 
burner boilers. The NOX emission control technology on which 
the emission limitation is based is plug-in combustion controls or non-
plug-in combustion controls. Except as provided in Sec. 76.5(d), the 
owner or operator of a unit with a cell burner boiler that installs non-
plug-in combustion controls shall comply with the emission limitation 
applicable to cell burner boilers.
    (2) 0.86 lb/mmBtu of heat input on an annual average basis for 
cyclone boilers with a Maximum Continuous Steam Flow at 100% of Load of 
greater than 1060, in thousands of lb/hr. The NOX emission 
control technology on which the emission limitation is based is natural 
gas reburning or selective catalytic reduction.
    (3) 0.84 lb/mmBtu of heat input on an annual average basis for wet 
bottom boilers, with a Maximum Continuous Steam Flow at 100% of Load of 
greater than 450, in thousands of lb/hr. The NOX emission 
control technology on which the emission limitation is based is natural 
gas reburning or selective catalytic reduction.
    (4) 0.80 lb/mmBtu of heat input on an annual average basis for 
vertically fired boilers. The NOX emission control technology 
on which the emission limitation is based is combustion controls.
    (b) The owner or operator shall determine the annual average 
NOX emission rate, in lb/mmBtu, using the methods and 
procedures specified in part 75 of this chapter.


[62 FR 67162, Dec. 19, 1996; 62 FR 3464, Jan. 23, 1997; 62 FR 32040, 
June 12, 1997; 64 FR 55838, Oct. 15, 1999]