the applicable employment taxes (reduced by any credits allowed under subsections (e) and (f) of section 3111 of the Internal Revenue Code of 1986, sections 7001 and 7003 of the Families First Coronavirus Response Act, and section 2301 of the CARES Act) on the wages paid with respect to the employment of all the employees of the eligible employer for such calendar quarter. (3) Refundability of excess credit (A) In general If the amount of the credit under subsection (a) exceeds the limitation of paragraph (2) for any calendar quarter, such excess shall be treated as an overpayment that shall be refunded under sections 6402(a) and 6413(b) of the Internal Revenue Code of 1986. (B) Treatment of payments For purposes of section 1324 of title 31, United States Code, any amounts due to the employer under this paragraph shall be treated in the same manner as a refund due from a credit provision referred to in subsection (b)(2) of such section. (c) Qualified employee testing expenses For purposes of this section, the term qualified employee testing expenses means amounts paid or incurred by the employer for testing employees of the employer for COVID-19 or SARS-CoV-2 (including on a periodic basis). (d) Other definitions For purposes of this section— (1) Applicable employment taxes The term applicable employment taxes means the following: (A) The taxes imposed under section 3111(a) of the Internal Revenue Code of 1986. (B) So much of the taxes imposed under section 3221(a) of such Code as are attributable to the rate in effect under section 3111(a) of such Code. (2) Secretary The term Secretary means the Secretary of the Treasury or the Secretary’s delegate. (3) Other terms Any term used in this section (other than subsection (b)(1)(B)) which is also used in chapter 21 or 22 of the Internal Revenue Code of 1986 shall have the same meaning as when used in such chapter. (e) Certain governmental employers This credit shall not apply to the Government of the United States, the government of any State or political