Boardmeans the Railroad Retirement Board.
carriermeans an express company, sleeping-car company, or carrier by railroad, subject to part I of the Interstate Commerce Act (24 Stat. 379;
companymeans a partnership, association, joint stock company, corporation, or institution.
compensationmeans compensation as defined in the act and part 222 of this chapter.
employeemeans an employee as defined in the act and part 203 of this chapter.
employermeans an employer as defined in the act and part 202 of this chapter.
personincludes an individual, trust, estate, partnership, association, joint stock company, company, corporation, and institution.
servicemeans service as defined in the act and part 220 of this chapter.