§ 5101. Enforcement of money judgment or order. A money judgment and an order directing the payment of money, including motion costs, may be enforced as prescribed in article fifty-two. An order of support, alimony or maintenance of any court of competent jurisdiction where arrears/past-due support have not been reduced to judgment, including motion costs, may be enforced as prescribed in article fifty-two upon the default of a debtor as such term is defined in paragraph seven of subdivision (a) of section fifty-two hundred forty-one of this article, except that for the purposes of this section only, a default shall not be founded upon retroactive child support obligations as defined in paragraph (a) of subdivision one of section four hundred forty of the family court act and subdivision one of section two hundred forty, and paragraph b of subdivision nine of section two hundred thirty-six of the domestic relations law. The establishment of a default shall be subject to the procedures established for the determination of a mistake of fact for income executions pursuant to subdivision (e) of section fifty-two hundred forty-one of this article.