[Code of Federal Regulations] [Title 20, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR203.3] [Page 190-191] TITLE 20--EMPLOYEES' BENEFITS CHAPTER II--RAILROAD RETIREMENT BOARD PART 203_EMPLOYEES UNDER THE ACT--Table of Contents Sec. 203.3 When an individual is performing service for an employer. (a) The legal relationship of employer and employee is defined by the act. Thus, an individual is performing service for an employer if: (1) He is subject to the right of an employer, directly or through another, to supervise and direct the manner in which his services are rendered; or (2) In rendering professional or technical services he is integrated into the staff of the employer; or (3) He is rendering personal services on the property used in the operations of the employer and the services are integrated into those operations. [[Page 191]] (b) The provisions in paragraph (a) of this section are controlling irrespective of whether the service is performed on a part-time basis, and, with respect to paragraph (a)(1) of this section, irrespective of whether the right to supervise and direct is exercised.