You must be an employee for your work to be covered as employment for social security purposes. You are an employee if you are--
(a) A corporation officer as described in Sec. 404.1006;
(b) A common-law employee as described in Sec. 404.1007 (unless you are, after December 31, 1982, a qualified real estate agent or direct seller as described in Sec. 404.1069); or
(c) An agent-driver or commission-driver, a full-time life insurance salesman, a home worker, or a traveling or city salesman as described in Sec. 404.1008. [45 FR 20075, Mar. 27, 1980, as amended at 48 FR 40515, Sept. 8, 1983]