# 35 Ill. Adm. Code 203.107: Section 203.107 Allowable Emissions

> Illinois · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_107

## Section

- **Citation:** 35 Ill. Adm. Code 203.107
- **Heading:** Section 203.107 Allowable Emissions
- **Jurisdiction:** Illinois
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Illinois Administrative Code / Title 35 ENVIRONMENTAL PROTECTION / CHAPTER I: POLLUTION CONTROL BOARD / Part 203 MAJOR STATIONARY SOURCES CONSTRUCTION AND MODIFICATION / Section 203.107 Allowable Emissions

## Text

Section 203
Section 203.107  Allowable
Emissions
a)         "Allowable emissions" means the emission rate of a
stationary source calculated using the maximum rated capacity of the source
(unless the source is subject to federally enforceable permit conditions or
other such federally enforceable limits which restrict the operating rate, or
hours of operation, or both) and the most stringent of the following:
1)         Any applicable standards adopted by the United States
Environmental Protection Agency (USEPA) pursuant to Sections 111 and 112 of the
Clean Air Act (42 U.S.C. 7401, et seq.) and made applicable in Illinois
pursuant to Section 9.1 of the Environmental Protection Act (Act) (Ill. Rev.
Stat. 1991, ch. 111½, pars. 1001 et seq.) [415 ILCS 5/1 et seq.];
2)         The applicable emission standards or limitations contained in
this Chapter and approved by USEPA pursuant to Section 110(a)(2) or 110 (a)(3)
of the Clean Air Act, including those standards or limitations with a future
compliance date and any other emission standard or limitation enforceable under
the Environmental Protection Act or by the USEPA under Section 113 of the Clean
Air Act; or
3)         The emissions rate specified as a federally enforceable permit
condition including those emissions rates with a future compliance date.
b)         The allowable emissions may be based on a federally
enforceable permit condition limiting material or fuel throughput.
c)         If a source is not subject to an emission standard described
in subsection (a) above and is not subject to a permit condition described in
subsection (b), the allowable emissions shall be the source's potential to
emit.

## Nearby sections

- [35 Ill. Adm. Code 203.100 Section 203.100  Effective Dates](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_100.md)
- [35 Ill. Adm. Code 203.101 Section 203.101  Definitions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_101.md)
- [35 Ill. Adm. Code 203.103 Section 203.103  Actual Construction](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_103.md)
- [35 Ill. Adm. Code 203.104 Section 203.104  Actual Emissions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_104.md)
- [35 Ill. Adm. Code 203.107 Section 203.107  Allowable Emissions](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_107.md)
- [35 Ill. Adm. Code 203.110 Section 203.110  Available Growth Margin](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_110.md)
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- [35 Ill. Adm. Code 203.119 Section 203.119  Emission Baseline](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_119.md)
- [35 Ill. Adm. Code 203.121 Section 203.121  Emission Offset](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_121.md)
- [35 Ill. Adm. Code 203.122 Section 203.122  Emissions Unit](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_122.md)
- [35 Ill. Adm. Code 203.123 Section 203.123  Federally Enforceable](https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_123.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_IL_IAC_T35_P203_S203_107. Check the current official text before relying on it. Not legal advice.