Section 97.21 - Submission of NO[X] Budget permit applications(a)Duty to apply. The NOX authorized account representative of any NOX Budget source required to have a federally enforceable permit shall submit to the permitting authority a complete NOX Budget permit application under § 97.22 by the applicable deadline in paragraph (b) of this section.(b)(1) For NOX Budget sources required to have a title V operating permit:(i) For any source, with one or more NOX Budget units under § 97.4(a) that commence operation before January 1, 2001, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 covering such NOX Budget units to the permitting authority at least 18 months (or such lesser time provided by the permitting authority) before May 31, 2004.(ii) For any source, with any NOX Budget unit under § 97.4(a) that commences operation on or after January 1, 2001, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 covering such NOX Budget unit to the permitting authority at least 18 months (or such lesser time provided by the permitting authority) before the later of May 31, 2004 or the date on which the NOX Budget unit commences operation.(2) For NOX Budget sources required to have a non-title V permit: (i) For any source, with one or more NOX Budget units under § 97.4(a) that commence operation before January 1, 2001, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 covering such NOX Budget units to the permitting authority at least 18 months (or such lesser time provided by the permitting authority) before May 31, 2004.(ii) For any source, with any NOX Budget unit under § 97.4(a) that commences operation on or after January 1, 2001, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 covering such NOX Budget unit to the permitting authority at least 18 months (or such lesser time provided by the permitting authority) before the later of May 31, 2004 or the date on which the NOX Budget unit commences operation.(c)Duty to reapply.(1) For a NOX Budget source required to have a title V operating permit, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 for the NOX Budget source covering the NOX Budget units at the source in accordance with the permitting authority's title V operating permits regulations addressing operating permit renewal.(2) For a NOX Budget source required to have a non-title V permit, the NOX authorized account representative shall submit a complete NOX Budget permit application under § 97.22 for the NOX Budget source covering the NOX Budget units at the source in accordance with the permitting authority's non-title V permits regulations addressing permit renewal. 65 FR 2727 , Jan. 18, 2000, as amended at 67 FR 21529 , Apr. 30, 2002