(a) Multiple plant permit amendments. All representations in an application for a multiple plant permit, as well as any general and special conditions contained in the permit, become conditions upon which the subsequent multiple plant permit is issued. It shall be unlawful for any person to vary from such representation or condition if the change is a modification, a change in the method of control of emissions, or will result in an increase in emissions, unless application is made to the commission to amend the multiple plant permit in that regard and such amendment is approved by the commission. Applications to amend a multiple plant permit shall be submitted with a completed Form PI-1 and are subject to the requirements of §116.116(b) of this title (relating to Changes to Facilities).
(b) Multiple plant permit alterations.
  (1) A multiple plant permit alteration is for any variation from a representation in a multiple plant permit application or a general or special condition of a multiple plant permit that does not require a multiple plant permit amendment.
  (2) All multiple plant permit alterations which may involve a change in a general or special condition contained in the permit, or affect control equipment performance must receive prior approval by the executive director. The executive director shall be notified in writing of all other multiple plant permit alterations within ten days of implementing the change, unless the permit provides for a different method of notification. Any multiple plant permit alteration request or notification shall include information sufficient to demonstrate that the change does not interfere with the owner or operator's previous demonstrations of compliance with the requirements of §116.1011 of this title, including the protection of public health and welfare. The appropriate commission regional office and any local air pollution program having jurisdiction shall be provided copies of all multiple plant permit alteration documents.
(c) Permit by rule under Chapter 106 of this title (relating to Permits by Rule) in lieu of permit amendment or alteration.
  (1) Notwithstanding subsections (a) or (b) of this section, no permit amendment or alteration is required if the changes to the permitted facility qualify for a permit by rule under Chapter 106 of this title unless prohibited by permit provision as provided in §116.1015 of this title (relating to General and Special Conditions). All such changes to a permitted facility authorized by Chapter 106 of this title, shall be incorporated into that facility's permit at such time as the permit is amended or renewed.
  (2) Emission increases authorized by Chapter 106 of this title, at an existing facility covered by a multiple plant permit shall not cause an exceedance of the aggregate emissions cap or individual emission limitation.

Source Note: The provisions of this §116.1021 adopted to be effective September 4, 2000, 25 TexReg 8668