448.23  Exclusions.--Except as specified in s. 448.22(1)(c), this part does not apply to:

(1)  Business entities duly registered as farm labor contractors pursuant to part III of chapter 450;

(2)  Employee leasing companies, as defined in s. 468.520;

(3)  Temporary help services engaged in supplying solely white collar employees, secretarial employees, clerical employees, or skilled laborers;

(4)  Labor union hiring halls; or

(5)  Labor bureau or employment offices operated by a business entity for the sole purpose of employing an individual for its own use.