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Permitting
There are several different
types of air quality permits depending on the type of activity
and emission rates of air pollutants. The following
list explains each different type of permit.
Stationary Source Permits
• Class I
• Class II
• Class III
• General
Permit Applications Monthly Reports
• Facility Change Allowed w/o Permit Revision
• Minor Permit Revision
• Permit Transfer
Need More Help? Contact the Air Program at 740-3340
Class I Permits
Class
I permits are issued to any source that meets the requirements
of Pima County Code (P.C.C.) Title 17, Section 17.12.140(B)(1). Such
sources include:
• Any major source. A "major" source
as defined by P.C.C. 17.04.340.126 is any source that
has the potential to emit 100 tons per year of any air
pollutant as defined in section 302 of the Clean Air
Act, which includes fugitive emissions of such pollutant. A
source is also considered major if it has the potential
to emit 10 tons per year of any single hazardous air
pollutant or 25 tons per year of any combination of
such hazardous air pollutants.
• Any affected source. An "affected" source
as defined by P.C.C. 17.12.340.12 is any source that includes one or more units
which are subject to emission reduction requirements or limitations under Title
IV of the Clean Air Act.
• Solid Waste Incineration Units. subject to section 129(e) of the Clean Air Act.
• Designated. Any source in a source category designated
by the Administrator pursuant to 40 CFR 70.3 and adopted by the control officer
by rule.
 Class
I Application & Other Forms
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Class II Permits
Class
II permits are issued to any source that meets the requirements
of P.C.C. Title 17, Section 17.12.140(B)(2). Such
sources include:
• Any
source, including an area source, subject to a standard,
limitation, or other requirement under section 111
of the Clean Air Act.
• Any source, including an area source, subject to a standard or other
requirement under section 112 of the Clean Air Act, except that a source is not
required to obtain a permit solely because it is subject to regulations or requirements
under section 112(r) of the Clean Air Act.
Class
II Application & Other Forms
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Class III Permits
Class
III permits are issued to any source that meets the requirements
of P.C.C. Title 17, Section 17.12.140(B)(3). Such
sources include:
• Any
source that has the potential to emit, without controls,
significant quantities of regulated air pollutants.
• Stationary rotating machinery of greater than 325 brake horsepower.
• Fuel-burning equipment which, at a location or property other than a
one or two family residence, are fired at a sustained rate of more than one million
BTU per hour for more than an eight hour period.
Class
III Application & Other Forms
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General Permits
A
general permit is a pre-approved permit and certificate
that covers a specific class of sources. A general permit differs from an individual permit in that it can be applied to more than one source, is usually more restrictive, less expensive, and requires a shorter period of time for the processing and issuance of an Authorization to Operate (ATO). By
the issuance of a general permit, PDEQ indicates that
it approves the activities authorized by the general
permit, provided that the owner or operator of the source,
registers with PDEQ and meets the requirements of the
general permit.
When
a source applies for coverage under an individual permit
it must go through its own public notice and possibly
a public hearing. Since the general permit is written to cover sources that are similar, it must go through public notice and public hearing only once. Each source that is covered by the general permit will not be required to go through its own public notice and public hearing. However, a list of sources that have been covered under the general permit will be published periodically. This
publication will be the public's only notification that
a specific source has been given coverage under the general
permit.
Once
a general permit has been developed, sources may apply
for coverage under the general permit instead of obtaining
individual permits. If the sources meet the criteria
for coverage under the general permit, an Authorization
to Operated (ATO) is issued for each major piece of equipment
covered under the permit. The
ATO allows for easy tracking of permitted equipment and
assists inspectors in verifying coverage while conducting
inspections.
General
Permit Application & Other Forms
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You may contact the Air Program for further assistance.
520-740-3340
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