respect to modified safe harbor requirements for automatic contribution arrangements (a) General rule For purposes of section 38, in the case of a small employer, the safe harbor adoption credit determined under this section for any taxable year is the amount equal to the total of the employer's matching contributions under section 401(k)(14)(D) during the taxable year on behalf of employees who are not highly compensated employees, subject to the limitations of subsection (b). (b) Limitations (1) Limitation with respect to compensation The credit determined under subsection (a) with respect to contributions made on behalf of an employee who is not a highly compensated employee shall not exceed 2 percent of the compensation of such employee for the taxable year. (2) Limitation with respect to years of participation Credit shall be determined under subsection (a) with respect to contributions made on behalf of an employee who is not a highly compensated employee only during the first 5 years such employee participates in the qualified automatic contribution arrangement. (c) Definitions (1) In general Any term used in this section which is also used in section 401(k)(14) shall have the same meaning as when used in such section. (2) Small employer The term small employer means an eligible employer (as defined in section 408(p)(2)(C)(i)). (d) Denial of double benefit No deduction shall be allowable under this title for any contribution with respect to which a credit is allowed under this section. . (b) Credit To be part of general business credit Section 38(b) of the Internal Revenue Code of 1986 is amended— (1) by striking plus at the end of paragraph (35)