State
(c) Any person, including any State or Federal organization or institution, delivering any product to any organization for charitable distribution or use, including any State or Federal welfare organization, for its own use, whether the product is delivered as merchandise, or as a container for merchandise, or otherwise, shall, if such product or the commodity from which processed is under this chapter subject to tax, be entitled to a refund of the amount of any tax due and paid under this chapter with respect to such product so delivered, or to a credit against any tax due and payable under this chapter of the amount of tax which would be refundable under this section with respect to such product so delivered: Provided, however, That no tax shall be refunded or credited under this section, unless the person claiming the refund or credit establishes, in accordance with regulations prescribed by the Commissioner of Internal Revenue, with the approval of the Secretary of the Treasury (1) that he has not included the tax in the price of the product so delivered or collected the amount of the tax from the said organization, or (2) that he has repaid, or has agreed in writing to repay, the amount of the tax to the said organization. The word “State” as used in this section shall include a State and any political subdivision thereof.