This chapter shall apply only to “nonagricultural workers” as defined by Section 1101(a)(15)(H)(ii)(b) of Title 8 of the federal Immigration and Nationality Act. It shall not apply to any person duly licensed as a “farm labor contractor” as that term is defined in Section 1682 of the Labor Code nor shall it apply to any person exempt from the licensing requirement in Section 1682.5 of the Labor Code or to any employer employing agricultural workers as defined by Section 1101(a)(15)(H)(ii)(a) of Title 8 of the federal Immigration and Nationality Act.