in such rural areas in the State. (ii) Special rule for overlapping jurisdictions For purposes of clause (i)(I), if an area is within the jurisdiction of 2 or more governmental units, such area shall be treated as only within the jurisdiction of the unit having jurisdiction over the smallest geographical area unless such unit agrees to surrender all or part of such jurisdiction for such calendar year to the unit with overlapping jurisdiction which has the next smallest geographical area. (C) Reallocation The amount allocated under this paragraph to any qualified issuer may be reallocated by such issuer to the State for reallocation to other qualified issuers (including agencies of the State). (4) Carryover of unused limitation (A) In general If, for any calendar year, a State's broadband infrastructure bonds volume cap exceeds the amount of bonds issued during such year which are designated as broadband infrastructure bonds under subsection (c)(1)(D) with respect to broadband projects within such State, the broadband infrastructure bonds volume cap for such State for the following calendar year shall be increased by the amount of such excess. (B) Limitation on carryover Any carryforward of an excess amount may be carried only to the first 2 years following the unused volume cap year. For purposes of the preceding sentence, a volume cap amount shall be treated as used on a first-in first-out basis. (e) Other rules and definitions (1) Interest includible in income For purposes of this title, interest on any broadband infrastructure bond shall be includible in gross income. (2) Credit not a Federal guarantee For purposes of section 149(b), a broadband infrastructure bond shall not be treated as Federally guaranteed by reason of the credit allowed under this section. (3) Coordination with section 148 (A) Yield reduced by credit For purposes of section 148, the yield on a broadband infrastructure bond shall be determined by reducing the otherwise effective yield by the amount of the credit allowed to the issuer under