Section 102. Definitions.
The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Employee organization." An organization of any kind or any agency or employee representation committee or plan in which membership includes public employees and which exists for the purpose, in whole or in part, of dealing with employers concerning grievances, employee-employer disputes, wages, rates of pay, hours of employment or conditions of work, but shall not include any organization which practices discrimination in membership because of race, color, creed, national origin or political affiliation.
"First-level supervisor." An employee functioning at the lowest level as a supervisor.
"Public employer." The Pennsylvania Turnpike Commission.
"Supervisor." Any individual having authority in the interests of the employer to hire, transfer, suspend, layoff, recall, promote, discharge, assign, reward or discipline other employees or responsibility to direct them or adjust their grievances, or to a substantial degree effectively recommend such action if, in connection with the foregoing, the exercise of such authority is not merely routine or clerical in nature but calls for the use of independent judgment.