The Small Business Administration in the case of a nonagricultural enterprise, and the Farmers Home Administration in the case of an agricultural enterprise, are authorized to provide any industrial, commercial, agricultural, or other enterprise, which has constituted a major source of employment in an area suffering a major disaster and which is no longer in substantial operation as a result of such disaster, a loan in such amount as may be necessary to enable such enterprise to resume operations in order to assist in restoring the economic viability of the disaster area. Loans authorized by this section shall be made without regard to limitations on the size of loans which may otherwise be imposed by any other provision of law or regulations promulgated pursuant thereto.