The Indiana Department of Environmental Management (IDEM) is proposing to amend the rules at 326 IAC 2-1.1-3 concerning the operation of short term backup units. Typically, if an existing permitted emission unit or its control device at a source needs to be taken offline due to failure or a planned maintenance event, a different emission unit or control device often needs to be inserted in its place in order for the process to continue operating. If the repairs to the permitted units last longer than thirty (30) days, 326 IAC 2 currently requires that the source submit a request for a modification of their air permit and get approval prior to bringing these units onsite or operating the backup units.
On July 20, 2016, IDEM announced its intent to propose changes to 326 IAC 2-1.1-3 to address this issue. The First Notice Comment Period Ended in August 2016, and IDEM received a suggestion as to how IDEM should modify the language. IDEM anticipates that in the next few months the proposed amendments will progress to a second notice for comment, which will include the proposed changes to the rule.
To follow progress on development of this rule, see Rule Identifier #16-309 on IDEM's website.