Section 9-A. Compulsory Coverage of the Self -employed. — Coverage in the SSS shall be compulsory upon such self-employed persons as may be determined by the Commission under such rules and regulations as it may prescribe, including but not limited to the following:

  1. All self-employed professionals;

  2. Partners and single proprietors of businesses;

  3. Actors and actresses, directors, scriptwriters and news correspondents who do not fall within the definition of the term "employee" in Sec. 8 (d) of this Act;

  4. Professional athletes, coaches, trainers and jockeys; and

  5. Individual farmers and fishermen.

Unless otherwise specified herein, all provisions of this Act applicable to covered employees shall also be applicable to the covered self-employed persons.