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Chapter 40. NO

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Regulation .01 Definitions.Copy Citation

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A.
In this chapter, the following terms have the meanings indicated.
B.
Terms Defined.
(1)
“Boiler” means an enclosed fossil or other fuel-fired combustion device used to produce heat and to transfer heat to recirculating water, steam, or other medium.
(2)
“Combined cycle system” means a system comprised of one or more combustion turbines, heat recovery steam generators, and steam turbines configured to improve overall efficiency of electricity generation or steam production.
(3)
“Combustion turbine” means an enclosed fossil or other fuel-fired device:
(a)
That is comprised of a compressor, a combustor, and a turbine; and
(b)
In which the flue gas resulting from the combustion of fuel in the combustor passes through the turbine, rotating the turbine.
(4)
“Fossil fuel” means natural gas, petroleum, coal, or any form of solid, liquid, or gaseous fuel derived from such material.
(5)
“Fossil fuel-fired” means:
(a)
The combustion of fossil fuel, alone or in combination with any other fuel, where fossil fuel actually combusted comprises more than 50 percent of the annual heat input on a Btu basis during any year; or
(b)
For a new unit, the combustion of fossil fuel, alone or in combination with any other fuel, where fossil fuel is projected to comprise more than 50 percent of the annual heat input on a Btu basis during the year that the new unit begins combusting fossil fuel.
(6)
“New unit” means:
(a)
A non-trading large NOx unit that is installed after May 1, 2018; or
(b)
An existing unit that is modified to meet the definition of §B(8) of this regulation.
(7)
“New unit set aside” means remaining NOx ozone season emission tons available for new units.
(8)
“Non-trading large NOx unit” means a fossil-fuel fired stationary boiler, combustion turbine, or combined cycle system unit with;
(a)
A maximum design heat input greater than 250 mmBtu per hour; or
(b)
A name plate capacity greater than 25.0 MW.
(9)
“Ozone season” means May 1 through September 30 of any calendar year.

Regulation .02 Applicability.Copy Citation

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A.
The owner or operator of a non-trading large NOx unit, that is not a unit subject to a federal trading program for ozone season emissions of NOx established under 40 CFR Part 97 to address interstate transport of ozone and NOx in accordance with 40 CFR 52.38(b), or a state trading program for ozone season emissions of NOx approved by the EPA Administrator as meeting the requirements of 40 CFR 52.38(b), shall comply with the ozone season NOx emission limitation, monitoring, record-keeping, and reporting requirements for ozone season emissions of NOx set forth in this chapter.
B.
The requirements of this chapter apply to a person who owns or operates a non-trading large NOx unit located at the affected sources in §C of this regulation.
C.
Affected Sources and Units.
(1)
American Sugar Unit No. C6;
(2)
Cove Point LNG Units No. Frame 5-1 (Turbine S009), Frame 5-2 (Turbine S010), Frame 7-A, Frame 7-B, Aux A and Aux B;
(3)
National Institutes of Health Unit 5-1156; and
(4)
A person who owns or operates a new unit subject to this chapter.

Regulation .03 NOCopy Citation

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A.
The total combined NOx ozone season emissions for all non-trading large NOx units subject to this chapter may not exceed 1013 tons in accordance with the 40 CFR Part 97, Subpart E, Appendix C.
B.
NOx Ozone Season Emission Caps.
(1)
The total combined ozone season NOx emissions from all the affected units at an affected source as identified in Regulation .02C of this chapter may not exceed the NOx ozone season emission caps in §B(2) of this regulation.
(2)
Table — NOx Ozone Season Emission Caps.
C.
NOx ozone season emission caps for new units shall be determined by the Department from available tonnage allocated to New Unit Set Aside under §B(2) of this regulation.

Regulation .04 Monitoring and Reporting Requirements.Copy Citation

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A.
For non-trading large NOx units subject to this chapter, the owner or operator shall:
(1)
Continuously monitor NOx emissions with a CEM system in accordance with 40 CFR Part 75, Subpart H and 40 CFR §51.121(i)(4); and
(2)
Maintain records and submit reports regarding NOx emissions in accordance with 40 CFR Part 75.
B.
The owner or operator of a non-trading large NOx unit subject to this regulation shall include emissions data obtained from a CEM system pursuant to §A of this regulation in the CEM quarterly reports submitted to the Department pursuant to COMAR 26.11.01.11E(2).
Chapter annotations
Authority: Environment Article, §§1-404, 2-103, and 2-301—2-303, Annotated Code of Maryland
History: Effective date: April 23, 2018 (45:8 Md. R. 422)
History: Regulation .02A, C amended effective April 15, 2024 (50:7 Md. R. 334)
History: Regulation .03B amended effective April 15, 2024 (50:7 Md. R. 334)