Current through Register Vol. XLI, No. 50, December 13, 2024
Section 45-1-4 - Application Requirements4.1. Any owner or operator that cannot comply with the applicable emission limitations required by 45CSR2, 45CSR3, 45CSR5, 45CSR6, 45CSR7, 45CSR10 or 45CSR21 during periods of startup or shutdown shall apply for a permit in accordance with 45CSR13, 45CSR14 or 45CSR19, as applicable and request an alternative emission limitation for periods of startup or shutdown.4.2. The permit application shall be specific to the emissions unit at the source and shall consist of the following: 4.2.1. The owner or operator shall narrowly define startup and shutdown operations at the emissions unit including the parameters that define startup and shutdown; the estimated duration of startup and shutdown events and the estimated frequency of startup and shutdown events for each requested alternative emission limitation.4.2.2. The owner or operator shall describe why the control strategy used during normal operations is technically infeasible during periods of startup or shutdown.4.2.3. The owner or operator shall describe any alternate control strategies considered, why the selected alternative control strategy is appropriate and why other alternative control strategies were not proposed.4.2.4. The owner or operator shall propose alternative emission limitation(s) and monitoring parameter(s) during startup or shutdown with reasonable specificity to ensure practical enforceability of the alternative emission limitation.4.2.5. The owner or operator shall provide an estimate of the worst-case emissions that may occur during periods of startup or shutdown for which the proposed alternative emission limitation will apply. For instance, if the proposed AEL is based on a reduced efficiency of the control device during startup then the emissions estimate would be based on the efficiency during periods of startup.4.2.6. If the owner or operator is proposing a work practice standard as an alternative emission limitation, it may be based on equipment manufacturer's recommendations or procedures, industry standards, or best management practices based on their unique operating requirements and current condition, usage and configuration of the unit.4.3. The Secretary has the authority to approve a reasonable definition of startup or shutdown events, the duration of events, and the maximum frequency of events and incorporate them as permit requirements.