1.141-12 (d) Redemption or defeasance of nonqualified bonds --

(1) In general.

The requirements of this paragraph (d) are met if all of the nonqualified bonds of the issue are redeemed. Proceeds of tax-exempt bonds must not be used for this purpose, unless the tax-exempt bonds are qualified bonds, taking into account the purchaser‘s use of the facility. If the bonds are not redeemed within 90 days of the date of the deliberate action, a defeasance escrow must be established for those bonds within 90 days of the deliberate action.

(2) Special rule for dispositions for cash.

If the consideration for the disposition of financed property is exclusively cash, the requirements of this paragraph (d) are met if the disposition proceeds are used to redeem a pro rata portion of the nonqualified bonds at the earliest call date after the deliberate action. If the bonds are not redeemed within 90 days of the date of the deliberate action, the disposition proceeds must be used to establish a defeasance escrow for those bonds within 90 days of the deliberate action.

(3) Notice of defeasance.

The issuer must provide written notice to the Commissioner of the establishment of the defeasance escrow within 90 days of the date the defeasance escrow is established.

(4) Special limitation.

The establishment of a defeasance escrow does not satisfy the requirements of this paragraph (d) if the period between the issue date and the first call date of the bonds is more than 10 12 years.

(5) Defeasance escrow defined.

A defeasance escrow is an irrevocable escrow established to redeem bonds on their earliest call date in an amount that, together with investment earnings, is sufficient to pay all the principal of, and interest and call premium on, bonds from the date the escrow is established to the earliest call date. The escrow may not be invested in higher yielding investments or in any investment under which the obligor is a user of the proceeds of the bonds.