Sales and use tax credit for the National Law Enforcement Museum.

(a) The National Law Enforcement Officers Memorial Fund, Inc. (“Fund”) and the vendors at the National Law Enforcement Museum (“Museum”) located on United States Reservation Number 7, on property bounded by the National Law Enforcement Officers Memorial on the north; the United States Court of Appeals for the Armed Forces on the west; Court Building C on the east; and Old City Hall on the south shall be granted a credit against the sales and use taxes imposed by §§ 47-2002 , 47-2002.02 , 47-2202 , and 47-2202.01 in the amount set forth in subsection (b) of this section during the period of time set forth in subsections (e) and (f) of this section.

(b) The amount of the credit shall be the amount of the taxes imposed by §§ 47-2002 , 47-2002.02 , 47-2202 , and 47-2202.01 on the National Law Enforcement Officers Memorial Fund, Inc., and the vendors at the Museum for sales at the Museum; provided, that the annual amount of the credit shall not exceed the amount that would be necessary to pay principal and interest for one year on a loan of $5.5 million amortized in equal semiannual payments over a 20-year period at the lesser of an 8% interest rate or an interest rate equal to the true interest cost (as the term “true interest cost” is defined by the Municipal Securities Rulemaking Board) on the District of Columbia revenue bonds issued for the Museum.

(c) The Fund shall notify the Office of the Chief Financial Officer of the true interest cost and the Fund’s calculation of the amount of the annual tax credit within 15 days after closing on the District of Columbia revenue bonds issued for the Museum.

(d) The Fund and the vendors at the Museum shall report their gross monthly receipts monthly to the Office of the Chief Financial Officer in accordance with the rules of the Office of Tax and Revenue, and include on such reports the amount of the tax credit balance after deducting the applicable taxes credited against such balance on their reports. The Fund shall coordinate with the vendors to ensure that the total amount of the credit allocated to the Fund and to each vendor in each year does not exceed the maximum annual amount of credit authorized under subsection (b) of this section.

(f) The Fund and the vendors at the Museum shall have no obligation to refund or otherwise return any amount of the credit authorized by this section to any person from whom the taxes offset by the credit were collected.

(g) The Chief Financial Officer may terminate the tax credit granted by this [section] if the Fund:

(1) Does not execute a development agreement with the District, relating to development of the Museum, within 90 days after [September 23, 2009]; or

(2) Violates the terms of the development agreement between the Fund and the District.