Illinois Administrative Code

Section 266.170 Process Weight Rate for Cement Silos The process weight rate for cement silos is calculated by using the weight of the maximum amount of cement transferred in any one-hour period.

Section 266.175 Process Weight Rate for Arc Welding The process weight rate for arc welding is calculated by using the weight of the welding rod and flux consumed.

Section 266.180 Process Weight Rate for Quenching The process weight rate for quenching is calculated by using the weight of the quench material added to the bath.

Section 266.185 Process Weight Rate for Scarfing Operations The process weight rate for scarfing operations is calculated by using the weight of all material removed by scarfing.

Section 266.190 Operations to Which Process Weight Rate Rule Does Not Apply a) The process weight rate rule does not apply to pickling operations. The applicable sulfuric acid mist regulations shall be used to determine allowable particulate emissions. b) The process weight rate …

Section 266.APPENDIX A Rule into Section Table Rule Section Rule Section 1.0 Authority Note 3.05 266.135 2.0 266.100 3.06 266.140 266.105 3.07 266.190(c) 3.0 266.110 3.08 266.145 3.01(a) 266.115(a) 3.09(a) 266.190(b) 3.01(b) 266.115(b) 3.09(b) 266.150(a) 3.01(c) 266.115(c) 3.09(c…

Section 270.101 Purpose This Part provides procedural rules to implement Section 39.5 of the Environmental Protection Act (See P.A. 87-1213, effective September 26, 1992, and P.A. 88-464, effective August 20, 1993) [415 ILCS 5/39.5] ("Act"), the permit program established for thi…

Section 270.102 Definitions Except as otherwise defined in this Part, definitions of terms used in this Part shall be those used in Section 39.5 of the Act and 35 Ill. Adm. Code 211.

Section 270.103 Existing CAAPP Source "Existing CAAPP source" means a CAAPP source that commenced operation prior to the effective date of the CAAPP.

Section 270.104 Initial CAAPP Application "Initial CAAPP application" means the first CAAPP application submitted for an existing CAAPP source.

Section 270.105 New CAAPP Source "New CAAPP source" means a CAAPP source that is not an existing CAAPP source.

Section 270.106 Standard Industrial Classification (SIC) Code "Standard Industrial Classification (SIC) Code" means the 2-, 3-, or 4- digit code for a source based on the primary activity conducted at the source, as determined from the Standard Industrial Classification Manual (1…

Section 270.107 Applicability This Part applies to the owner or operator of any source required to have an operating permit pursuant to Section 39.5 of the Act.

Section 270.108 Incorporation by Reference Standard Industrial Classification Manual, Superintendent of Documents, Washington, D.C. 20402, 1987, is incorporated by reference. This incorporation does not include any later amendments or editions. SUBPART B: TRANSITION

Section 270.201 Schedule for Submission of Initial CAAPP Applications for Existing CAAPP Sources An owner or operator of an existing CAAPP source shall submit to the Agency a complete initial CAAPP application for the source no later than the applicable date specified below: a) A…

Section 270.202 Transition from the State Operating Permit Program a) An owner or operator of a CAAPP source shall not be required to renew an existing State operating permit for any emission unit at such CAAPP source once a CAAPP application timely submitted prior to the expirat…

Section 270.301 Application Submittal a) In order for a submittal to be deemed timely, an owner or operator of an existing CAAPP source shall submit to the Agency a complete initial CAAPP application in accordance with the schedule set forth in Section 270.201 of this Part. An ow…

Section 270.302 Application Submittal for Modifications of CAAPP Permits a) A complete application for a significant modification of a CAAPP permit shall be submitted to the Agency not later than 9 months prior to the date of implementation of the proposed change. The proposed ch…

Section 270.303 Agency Determination of Completeness a) In order for an initial or renewal CAAPP application or an application for a significant modification to be deemed complete by the Agency, the application shall provide all of the information required in Subparts C and D of …

Section 270.304 Effect of a Timely and Complete Application Submittal a) An owner or operator of a CAAPP source shall not be in violation of the requirement to have a CAAPP permit under Section 39.5 of the Act if such owner or operator has submitted a timely and complete CAAPP ap…

Section 270.305 Subsequent Agency Request for Information a) The Agency may request additional information as needed to make a completeness determination. The Agency may to the extent practicable provide the applicant with a reasonable opportunity to correct deficiencies prior to…

Section 270.306 Submittal of New or Revised Information Any applicant who fails to submit any relevant facts necessary to evaluate the subject source and its CAAPP application or who has submitted incorrect information in a CAAPP application shall, upon becoming aware of such fai…

Section 270.307 Agency Action on CAAPP Applications a) In accordance with Section 39.5(10) of the Act, the Agency shall issue or deny the CAAPP permit within 18 months after the date of receipt of the complete CAAPP application, with the following exceptions, 1) Permits for affec…

Section 270.308 Requests for Exclusion from the CAAPP Due to Permanent Physical Constraints The owner operator of a CAAPP source that has been issued a CAAPP permit and that has reduced its potential to emit to a level below the major source threshold for each air pollutant emitt…

Section 270.401 General Application Information a) An owner or operator of a CAAPP source shall submit to the Agency four copies of a single complete CAAPP application covering all emission units and air pollution control equipment at the source. b) A CAAPP application shall cont…

Section 270.402 General Source Information Consistent with Section 270.401(d) of this Part a CAAPP application shall contain the following: a) Source identifying information including company name and address (or plant name and address if different from company name), owner's nam…

Section 270.403 Information for Individual Emission Units A CAAPP application shall contain the following for each emission unit, for each mode of operation for which a permit is being sought: a) Identification and description of the emission unit and the mode of operation for wh…

Section 270.404 Compliance Plan/Schedule of Compliance A CAAPP application shall contain a compliance plan/schedule of compliance for all emission units at the source, regardless of the compliance status of each emission unit, that contains the following: a) A description of the …

Section 270.405 Compliance Certification A CAAPP application shall contain a compliance certification that contains the following: a) A certification of compliance with all applicable requirements except those identified, signed by a responsible official consistent with Section 2…

Section 270.406 Operational Flexibility If the owner or operator of a CAAPP source desires a CAAPP permit which contains terms and conditions allowing for the trading of emissions increases and decreases at the CAAPP source solely for the purpose of complying with a federally-enf…

Section 270.407 Startup (Repealed) (Source: Repealed at 50 Ill. Reg. 2509, effective February 9, 2026)

Section 270.408 Malfunction or Breakdown (Repealed) (Source: Repealed at 50 Ill. Reg. 2509, effective February 9, 2026)

Section 270.409 Confidential Information If the applicant determines that certain submitted information in the CAAPP application be held confidential, the applicant shall mark and claim such information according to the Act and applicable regulations.

Section 270.410 Permit Shield The owner or operator of a CAAPP source seeking a permit shield in its CAAPP permit pursuant to Section 39.5(7)(j) of the Act shall request such permit shield in the CAAPP application regarding that source. See Section 39.5(5)(p) of the Act

Section 270.411 Accidental Releases The owner or operator of a CAAPP source shall certify in its CAAPP application, if applicable, that it has registered its risk management plan pursuant to Section 112(r) of the Clean Air Act or that it intends to comply with such requirement in…

Section 270.412 MACT Determination The CAAPP application must contain a proposed determination of maximum achievable control technology (MACT) for hazardous air pollutants (HAPs) in accordance with Section 112 of the Clean Air Act, if applicable.

Section 270.413 Acid Rain a) A designated representative of an affected source for acid deposition shall submit a timely and complete phase II acid rain permit application and compliance plan to the Agency, not later than January 1, 1996, that meets the requirements of Titles IV …

Section 270.501 Applicability The provisions of this Subpart shall apply only if: a) The Agency determines that cause exists to reopen and revise a CAAPP permit, pursuant to Section 39.5(15)(a) of the Act; or b) USEPA determines that cause exists to reopen and modify a CAAPP perm…

Section 270.502 Purpose This Subpart specifies the procedures for the reopening and revision of a CAAPP permit initiated by the Agency or USEPA pursuant to Section 270.501 of this Part. These procedures shall affect only those parts of a CAAPP permit for which cause to reopen exi…

Section 270.503 Reopenings Initiated by the Agency a) The Agency shall reopen and revise a CAAPP permit for any of the following reasons: 1) Additional requirements under the Clean Air Act become applicable to a major CAAPP source for which three or more years remain on the origi…

Section 270.504 Reopenings Initiated by USEPA a) If USEPA notifies the Agency and permittee that cause exists to modify a CAAPP permit, the Agency shall send to USEPA and the permittee a proposed determination of modification, with supporting information explaining the grounds fo…

Section 270.601 Purpose These rules specify the procedures for the determination and collection of fees required by Section 39.5(18) of the Act.

Section 270.602 Definitions The following terms are defined for purposes of this Subpart. "Active substitution unit" means an affected unit for acid deposition that is designated as a Phase I unit in an approved substitution plan pursuant to Section 404(c) of the Clean Air Act, e…

Section 270.603 Amount of Fee a) For each 12-month period beginning after the date on which USEPA approves or conditionally approves the CAAPP, but in no event prior to January 1, 1994, an owner or operator of a source subject to the CAAPP or excluded pursuant to Section 39.5(1.1…

Section 270.604 Billing Procedures a) The amount of the fee and the due date of payment shall be included on a billing statement sent to the source. b) The initial billing statement under this Subpart shall be sent after the source's initial CAAPP application has been received by…

Section 270.605 Payment Procedures a) Fee payment shall be made through the Illinois E-Pay System or by check or money order payable to either the "Treasurer, State of Illinois" or the "Illinois Environmental Protection Agency". The check or money order shall be accompanied by th…

Section 270.606 Refund and Underpayment of Fees a) A fee remitted to the Agency under this Subpart shall not be refunded in whole or part unless the amount paid is in excess of the amount billed or the amount billed is determined to be incorrect. b) An owner or operator of a sour…