; and (II) ending on the date described in subparagraph (A)(ii) (or, if earlier, the date the plan or contract amendment is adopted), the plan or contract is operated as if such plan or contract amendment were in effect; and (ii) such plan or contract amendment applies retroactively for such period. 4. Employee retention credit for employers affected by Hurricane Michael (a) In general For purposes of section 38 of the Internal Revenue Code of 1986, in the case of an eligible employer, the Hurricane Michael employee retention credit shall be treated as a credit listed in subsection (b) of such section. For purposes of this section, the Hurricane Michael employee retention credit for any taxable year is an amount equal to 40 percent of the qualified wages with respect to each eligible employee of such employer for such taxable year. For purposes of the preceding sentence, the amount of qualified wages which may be taken into account with respect to any individual shall not exceed $6,000. (b) Definitions For purposes of this section— (1) Eligible employer The term eligible employer means any employer— (A) which conducted an active trade or business on October 9, 2018, in the Hurricane Michael disaster zone