is $10 million or less. In the case of an issue of obligations that qualified for exemption under section 103(b)(6)(A) and this paragraph, if a section 103(b)(6)(D) capital expenditure made after the date of issue has the effect of making taxable the interest on the issue, under section 103(b)(6)(G) the loss of tax exemption for the interest shall begin only with the date on which the expenditure that caused the issue to cease to qualify under the $10 million limit was paid or incurred. See paragraph (b)(2)(vi) of this section for the time and manner in which the issuer may elect the $10 million exemption. See section 103(b)(6)(H) and paragraph (c)(2) of this section for the treatment of certain refinancing issues of $10 million of less.
The condition of section 103(b)(6)(H) is that an election by the issuer of the $10 million exemption in lieu of the $1 million limit for a refunding issue may be made only if each prior issue being redeemed is an issue which qualified either for the $1 million exemption or, by reason of an election under section 103(b)(6)(D), for the $10 million exemption. In addition, in applying the capital expenditures test under section 103(b)(6)(D)(ii) and paragraph (b)(2)(i)(b) of this section to refinancing issues, section 103(b)(6)(D) capital expenditures are taken into account only for purposes of determining whether prior issues which were made under the section 103(b)(6)(D) election qualified under section 103(b)(6)(A) and would have continued to qualify under that section but for the redemption.
26 C.F.R. §1.103-10