Issuer means-
Official intent means an issuer's declaration of intent to reimburse an original expenditure with proceeds of an obligation.
Original expenditure means an expenditure for a governmental purpose that is originally paid from a source other than a reimbursement bond.
Placed in service means, with respect to a facility, the date on which, based on all the facts and circumstances-
Reimbursement allocation means an allocation in writing that evidences an issuer's use of proceeds of a reimbursement bond to reimburse an original expenditure. An allocation made within 30 days after the issue date of a reimbursement bond may be treated as made on the issue date.
Reimbursement bond means the portion of an issue allocated to reimburse an original expenditure that was paid before the issue date.
Example. On January 1, 1994, County A issues an issue of 7 percent tax-exempt bonds (the 1994 issue) and makes a purported reimbursement allocation to reimburse an original expenditure for specified capital improvements. A immediately deposits funds corresponding to the proceeds subject to the reimbursement allocation in an escrow fund to provide for payment of principal and interest on its outstanding 1991 issue of 9 percent tax-exempt bonds (the prior issue). The use of amounts corresponding to the proceeds of the reimbursement bonds to create a sinking fund for another issue within 1 year after the purported reimbursement allocation invalidates the reimbursement allocation. The proceeds retain their character as unspent proceeds of the 7 percent issue upon deposit in the escrow fund. Accordingly, the proceeds are subject to the 7 percent yield restriction of the 1994 issue instead of the 9 percent yield restriction of the prior issue.
26 C.F.R. §1.150-2