43 Pa. Stat. § 260.2a
The following words and phrases when used in this act shall have, unless the context clearly indicates otherwise, the meanings given to them in this section:
"Authorized representative." An employe of the Department of Labor and Industry who is empowered to perform duties assigned in conformity with all existing laws, rules and regulations administered by the department.
"Check." A draft drawn on a bank and payable on demand.
"Department." The Department of Labor and Industry.
"Employer." Includes every person, firm, partnership, association, corporation, receiver or other officer of a court of this Commonwealth and any agent or officer of any of the above-mentioned classes employing any person in this Commonwealth.
"Fringe benefits or wage supplements." Includes all monetary employer payments to provide benefits under any employe benefit plan, as defined in section 3(3) of the Employee Retirement Income Security Act of 1974, 29 U.S.C. § 1001 et seq.; as well as separation, vacation, holiday, or guaranteed pay; reimbursement for expenses; union dues withheld from the employes' pay by the employer; and any other amount to be paid pursuant to an agreement to the employe, a third party or fund for the benefit of employes.
"Secretary." The Secretary of Labor and Industry.
"Wages." Includes all earnings of an employe, regardless of whether determined on time, task, piece, commission or other method of calculation. The term "wages" also includes fringe benefits or wage supplements whether payable by the employer from his funds or from amounts withheld from the employes' pay by the employer.
43 P.S. § 260.2a