What Entities are Covered by Equal Employment Opportunity Laws?

Title VII of the Civil Rights Act of 1964 covers all employers and
  employment agencies with 15 or more employees; unions with 15 or
  more members; and all federal, state, and local government agencies.
   

Title I of the Americans with Disabilities Act (ADA) covers all employers
   and employment agencies with 15 or more employees, unions with 15 or
   more members, and state and local government agencies.
   

The Age Discrimination in Employment Act (ADEA) covers private
  employers with 20 or more employees; all federal, state, and local
  government agencies; employment agencies that serve covered
  employers; and unions with 25 or more members.
   

The Equal Pay Act (EPA) covers all employees who are covered by the
  minimum wage law.  It prohibits payment of different wages to men and
  women performing substantially equal work under similar working
  conditions.

Section 501 of the Rehabilitation Act of 1973 prohibits Federal agencies
 

from discriminating against qualified individuals with disabilities and

  requires agencies to make reasonable accommodations to the special
needs of persons with disabilities.