Retailers of goods or services are primarily concerned with the enterprises described in sections 3(s)(1) and 3(s)(5) of the prior Act and section 3(s)(1) of the Act as amended in 1966. Although section 3(s)(1) of the prior Act (under the 1961 amendments) had exclusive application to the retail and service industry, section 3(s)(1) of the Act as amended in 1966 may apply to any enterprise. This part is concerned only with retail or service establishments and enterprises. Enterprises described in clauses (2), (3), and (4) of section 3(s) are discussed herein only with respect to the application to them of provisions relating to retail or service establishments. Coverage of such enterprises and the application of section 3(s)(1) of the amended Act to enterprises generally are discussed in part 776 of this chapter. The statutory definitions of enterprises of interest to retailers under the prior Act and the Act as amended in 1966 are quoted in § 779.22.