The Secretary may increase the average under subparagraph (B)(i) for any period if the utility owned by the governmental unit establishes to the satisfaction of the Secretary that, based on objective evidence of growth in natural gas consumption or population, such average would otherwise be insufficient for such period.
For purposes of the clause (i), the term “applicable share” means, with respect to any period, the natural gas allocable to such period if the gas were allocated ratably over the period to which the prepayment relates.
For purposes of subsection (a), a bond shall not be treated as an arbitrage bond solely by reason of the fact that the proceeds of the issue of which such bond is a part may be invested in higher yielding investments for a reasonable temporary period until such proceeds are needed for the purpose for which such issue was issued.
For purposes of subsection (a), a bond shall not be treated as an arbitrage bond solely by reason of the fact that an amount of the proceeds of the issue of which such bond is a part may be invested in higher yielding investments which are part of a reasonably required reserve or replacement fund. The amount referred to in the preceding sentence shall not exceed 10 percent of the proceeds of such issue unless the issuer establishes to the satisfaction of the Secretary that a higher amount is necessary.
A bond issued as part of an issue shall be treated as an arbitrage bond if the amount of the proceeds from the sale of such issue which is part of any reserve or replacement fund exceeds 10 percent of the proceeds of the issue (or such higher amount which the issuer establishes is necessary to the satisfaction of the Secretary).
Except to the extent provided by the Secretary, the amount which is required to be paid to the United States by the issuer shall be paid in installments which are made at least once every 5 years. Each installment shall be in an amount which ensures that 90 percent of the amount described in paragraph (2) with respect to the issue at the time payment of such installment is required will have been paid to the United States. The last installment shall be made no later than 60 days after the day on which the last bond of the issue is redeemed and shall be in an amount sufficient to pay the remaining balance of the amount described in paragraph (2) with respect to such issue. A series of issues which are redeemed during a 6-month period (or such longer period as the Secretary may prescribe) shall be treated (at the election of the issuer) as 1 issue for purposes of the preceding sentence if no bond which is part of any issue in such series has a maturity of more than 270 days or is a private activity bond. In the case of a tax and revenue anticipation bond, the last installment shall not be required to be made before the date 8 months after the date of issuance of the issue of which the bond is a part.
In the case of an issue described in subclause (II), clause (i) shall be applied by substituting “1 year” for “6 months” each place it appears with respect to the portion of the proceeds of the issue which are not expended in accordance with clause (i) if such portion does not exceed 5 percent of the proceeds of the issue.
For purposes of clause (i), in the case of an issue of tax or revenue anticipation bonds, the net proceeds of such issue (including earnings thereon) shall be treated as expended for the governmental purpose of the issue on the 1st day after the date of issuance that the cumulative cash flow deficit to be financed by such issue exceeds 90 percent of the proceeds of such issue.
For purposes of subclause (I), the term “cumulative cash flow deficit” means, as of the date of computation, the excess of the expenses paid during the period described in subclause (III) which would ordinarily be paid out of or financed by anticipated tax or other revenues over the aggregate amount available (other than from the proceeds of the issue) during such period for the payment of such expenses.
For purposes of subclause (II), the period described in this subclause is the period beginning on the date of issuance of the issue and ending on the earlier of the date 6 months after such date of issuance or the date of the computation of cumulative cash flow deficit.
In the case of a construction issue, paragraph (2) shall not apply to the available construction proceeds of such issue if the spending requirements of clause (ii) are met.
The term “available construction proceeds” means the amount equal to the issue price (within the meaning of sections 1273 and 1274) of the construction issue, increased by earnings on the issue price, earnings on amounts in any reasonably required reserve or replacement fund not funded from the issue, and earnings on all of the foregoing earnings, and reduced by the amount of the issue price in any reasonably required reserve or replacement fund and the issuance costs financed by the issue.
At the election of the issuer, paragraph (2) shall not apply to available construction proceeds which do not meet the spending requirements of clause (ii) if the issuer pays a penalty, with respect to each 6-month period after the date the bonds were issued, equal to 1½ percent of the amount of the available construction proceeds of the issue which, as of the close of such 6-month period, is not spent as required by clause (ii).
The requirement of this subclause is met if the issuer pays a penalty equal to 3 percent of the amount of available construction proceeds of the issue which is not spent for the governmental purposes of the issue as of the close of such initial temporary period multiplied by the number of years (including fractions thereof) in the initial temporary period.
The requirement of this subclause is met if the amount of the available construction proceeds of the issue which is not spent for the governmental purposes of the issue as of the close of such initial temporary period is invested at a yield not exceeding the yield on the issue or which is invested in any tax-exempt bond which is not investment property.
Any penalty under this subparagraph shall be paid to the United States not later than 90 days after the period to which the penalty relates.
Each of the $5,000,000 amounts in the preceding provisions of this subparagraph shall be increased by the lesser of $10,000,000 or so much of the aggregate face amount of the bonds as are attributable to financing the construction (within the meaning of subparagraph (C)(iv)) of public school facilities.
Gross income shall not include the sum described in paragraph (2). Notwithstanding any other provision of this title, no deduction shall be allowed for any amount paid to the United States under paragraph (2).
The Secretary shall prescribe such regulations as may be necessary or appropriate to carry out the purposes of this section.