(a) Applicability. This section applies only to modifications to industrial and hazardous solid waste permits. Modifications to municipal solid waste permits are covered in §305.70 of this title (relating to Municipal Solid Waste Permit and Registration Modifications).
(b) Class I modifications of solid waste permits.
  (1) Except as provided in paragraph (2) of this subsection, the permittee may put into effect Class 1 modifications listed in Appendix I of subsection (k) of this section under the following conditions:
    (A) the permittee must notify the executive director concerning the modification by certified mail or other means that establish proof of delivery within seven calendar days after the change is put into effect. This notification must specify the changes being made to permit conditions or supporting documents referenced by the permit and must explain why they are necessary. Along with the notification, the permittee must provide the applicable information in the form and manner specified in §1.5(d) of this title (relating to Records of the Agency), §§305.41 - 305.45 and 305.47 - 305.53 of this title (relating to Applicability; Application Required; Who Applies; Signatories to Applications; Contents of Application for Permit; Retention of Application Data; Additional Contents of Applications for Wastewater Discharge Permits; Additional Contents of Application for an Injection Well Permit; Additional Requirements for an Application for a Hazardous or Industrial Solid Waste Permit and for a Post-Closure Order; Revision of Applications for Hazardous Waste Permits; Waste Containing Radioactive Materials; and Application Fee), Subchapter I of this chapter (relating to Hazardous Waste Incinerator Permits), and Subchapter J of this chapter (relating to Permits for Land Treatment Demonstrations Using Field Tests or Laboratory Analyses);
    (B) the permittee must send notice of the modification request by first-class mail to all persons listed in §39.413 of this title (relating to Mailed Notice). This notification must be made within 90 calendar days after the change is put into effect. For the Class 1 modifications that require prior executive director approval, the notification must be made within 90 calendar days after the executive director approves the request; and
    (C) any person may request the executive director to review, and the executive director may for cause reject, any Class 1 modification. The executive director must inform the permittee by certified mail that a Class 1 modification has been rejected, explaining the reasons for the rejection. If a Class 1 modification has been rejected, the permittee must comply with the original permit conditions.
  (2) Class 1 permit modifications identified in Appendix I of subsection (k) of this section by a superscript 1 may be made only with the prior written approval of the executive director.
  (3) For a Class 1 permit modification, the permittee may elect to follow the procedures in subsection (c) of this section for Class 2 modifications instead of the Class 1 procedures. The permittee must inform the executive director of this decision in the notification required in subsection (c)(1) of this section.
(c) Class 2 modifications of solid waste permits.
  (1) For Class 2 modifications, which are listed in Appendix I of subsection (k) of this section, the permittee must submit a modification request to the executive director that:
    (A) describes the exact change to be made to the permit conditions and supporting documents referenced by the permit;
    (B) identifies the modification as a Class 2 modification;
    (C) explains why the modification is needed; and
    (D) provides the applicable information in the form and manner specified in §1.5(d) of this title and §§305.41 - 305.45 and 305.47 - 305.53 of this title;
  (2) The permittee must send a notice of the modification request by first-class mail to all persons listed in §39.413 of this title and must cause this notice to be published in a major local newspaper of general circulation. This notice must be mailed and published within seven days before or after the date of submission of the modification request, and the permittee must provide to the executive director evidence of the mailing and publication. The notice must include:
    (A) announcement of a 60-day comment period, in accordance with paragraph (5) of this subsection, and the name and address of an agency contact to whom comments must be sent;
    (B) announcement of the date, time, and place for a public meeting to be held in accordance with paragraph (4) of this subsection;
    (C) name and telephone number of the permittee's contact person;
    (D) name and telephone number of an agency contact person;
    (E) location where copies of the modification request and any supporting documents can be viewed and copied; and
    (F) the following statement: "The permittee's compliance history during the life of the permit being modified is available from the agency contact person."
  (3) The permittee must place a copy of the permit modification request and supporting documents in a location accessible to the public in the vicinity of the permitted facility.
  (4) The permittee must hold a public meeting no earlier than 15 days after the publication of the notice required in paragraph (2) of this subsection and no later than 15 days before the close of the 60-day comment period. The meeting must be held to the extent practicable in the vicinity of the permitted facility.
  (5) The public shall be provided at least 60 days to comment on the modification request. The comment period will begin on the date the permittee publishes the notice in the local newspaper. Comments should be submitted to the agency contact identified in the public notice.
  (6) No later than 90 days after receipt of the modification request, subparagraphs (A), (B), (C), (D), or (E) of this paragraph must be met, subject to §50.133 of this title (relating to Executive Director Action on Application), as follows:
    (A) the executive director or the commission must approve the modification request, with or without changes, and modify the permit accordingly;
    (B) the commission must deny the request;
    (C) the commission or the executive director must determine that the modification request must follow the procedures in subsection (d) of this section for Class 3 modifications for either of the following reasons:
      (i) there is significant public concern about the proposed modification; or
      (ii) the complex nature of the change requires the more extensive procedures of a Class 3 modification; or
    (D) the commission must approve the modification request, with or without changes, as a temporary authorization having a term of up to 180 days, in accordance with the following public notice requirements:
      (i) notice of a hearing on the temporary authorization shall be given not later than the 20th day before the hearing on the authorization; and
      (ii) this notice of hearing shall provide that an affected person may request an evidentiary hearing on issuance of the temporary authorization; or
    (E) the executive director must notify the permittee that the executive director or the commission will decide on the request within the next 30 days.
  (7) If the executive director notifies the permittee of a 30-day extension for a decision, then no later than 120 days after receipt of the modification request, subparagraphs (A), (B), (C), or (D) of this paragraph must be met, subject to §50.133 of this title, as follows:
    (A) the executive director or the commission must approve the modification request, with or without changes, and modify the permit accordingly;
    (B) the commission must deny the request;
    (C) the commission or the executive director must determine that the modification request must follow the procedures in subsection (d) of this section for Class 3 modifications for either of the following reasons:
      (i) there is significant public concern about the proposed modification; or
      (ii) the complex nature of the change requires the more extensive procedures of a Class 3 modification; or
    (D) the commission must approve the modification request, with or without changes, as a temporary authorization having a term of up to 180 days, in accordance with the following public notice requirements:
      (i) notice of a hearing on the temporary authorization shall be given not later than the 20th day before the hearing on the authorization; and
Cont'd...