Okla. Stat. tit. 27A, § 27A-2-5-114

standards - Oil and gas well and equipment emissions.

A. The Department shall have the authority to establish a

program for the implementation and enforcement of the federal

emission standards and other requirements under Section 112 of the

Federal Clean Air Act for hazardous air pollutants and for the

prevention and mitigation of accidental releases of regulated

substances under Section 112(r) of the Federal Clean Air Act.

1. Except as otherwise provided by paragraph 2 of this

subsection, to assure that such program shall be consistent with,

and not more stringent than, federal requirements:

a. any rule recommended by the Council and promulgated by

the Board regarding hazardous air pollutants and

regulated substances shall only be by adoption by

reference of final federal rules, and

b. shall include the federal early reduction program

under Section 112(i) (5) of the Federal Clean Air Act.

2. The Board may promulgate, pursuant to recommendation by the

Council, rules which establish emission limitations for hazardous

air pollutants which are more stringent than the applicable federal

standards, upon a determination by the Council that more stringent

standards are necessary to protect the public health or the

environment.

B. The Department shall also have the authority to establish a

separate and distinct program only for the control of the emission

of those toxic air contaminants not otherwise regulated by a final

emission standard under Section 112(d) of the Federal Clean Air Act.

1. Such program shall consist of permanent rules establishing:

a. appropriate emission limitations, work practice

standards, maximum acceptable ambient concentrations

or control technology standards necessary for the

protection of the public health or the environment,

and

Oklahoma Statutes - Title 27A. Environment and Natural Resources Page 115

b. emissions monitoring or process monitoring

requirements necessary to assure compliance with the

requirements of this section.

2. Paragraph 1 of this subsection shall not be construed as

requiring readoption of existing rules regarding toxic air

contaminants.

C. Regulation of any hazardous air pollutant pursuant to a

final emission standard promulgated under Section 112(d) of the

Federal Clean Air Act, shall preclude its regulation as a toxic air

contaminant under subsection B of this section.

D. Emissions from any oil or gas exploration or production well

with its associated equipment, and emissions from any pipeline

compressor or pump station shall not be aggregated with emissions

from other similar units, whether or not such units are in a

contiguous area or under common control, to determine whether such

units or stations are major sources, and in the case of any oil or

gas exploration or production well with its associated equipment,

such emissions shall not be aggregated for any purpose under this

section.

E. The Department shall not list oil and gas production wells

with their associated equipment as an area source category, except

that the Department may establish an area source category for oil

and gas production wells located in any metropolitan statistical

area or consolidated metropolitan statistical area with a population

in excess of one million (1,000,000) if the Department determines

that emissions of hazardous air pollutants from such wells present

more than a negligible risk of adverse effects to public health.

F. Nothing in this section shall be construed to limit

authority established elsewhere in the Oklahoma Clean Air Act.