Except as otherwise provided in Section 41-37-20:

1. (1) As of January 1, 1972, an employing unit shall cease to be an employer subject to Chapters 27 through 41 of this Title only if it files with the Commission by the thirtieth day of April of that year an application for termination of coverage and the Commission finds that there were no twenty different weeks within the preceding calendar year within which such employing unit had four or more individuals in employment subject to such chapters.
2. (2) As of January 1, 1973, an employing unit shall cease to be an employer subject to Chapters 27 through 41 of this Title only if it files with the Commission by the thirtieth day of April of any calendar year an application for termination of coverage and the Commission finds that there were no twenty different weeks within the preceding calendar year within which such employing unit had at least one individual in employment subject to such chapters and that there was no calendar quarter within the preceding calendar year in which such employing unit paid fifteen hundred dollars or more in wages for service in employment; provided, however, that no employing unit for which service is performed in employment as defined in Section 41-27-230 (3) shall cease to be an employer subject to Chapters 27 through 41 of this Title unless it files with the Commission by the thirtieth day of April of any calendar year an application for termination of coverage and the Commission finds that there were no twenty different weeks within the preceding calendar year within each of which such employing unit had four or more persons in employment.
3. (3) As of January 1, 1979, any employing unit, as defined in Section 41-27-230(5), shall cease to be an employer subject to Chapters 27 through 41 of this Title only if it files with the Commission by the thirtieth day of April of any calendar year an application for termination of coverage and the Commission finds that there were no twenty different weeks within the preceding calendar year within which such employing unit had at least ten individuals in employment subject to Chapters 27 through 41 of this Title and that there was no calendar quarter within the preceding calendar year in which such employing unit paid twenty thousand dollars or more in wages for service in employment.
4. (4) As of January 1, 1979, any employing unit, as defined in Section 41-27-230(6), shall cease to be an employer subject to Chapters 27 through 41 of this Title only if it files with the Commission by the thirtieth day of April of any calendar year an application for termination of coverage and the Commission finds that there was no calendar quarter within the preceding calendar year in which such employing unit paid one thousand dollars or more in wages for service in employment.
5. (5) Any employer who shall have rendered no employment and paid no wages in the State for a continuous period of one calendar year may submit an application for termination of coverage upon the resumption of employment in the State. Provided, further, that when a successor employer acquired substantially all of the business of a predecessor employer and the experience rating reserve of the predecessor is transferred to the successor, the liability of the predecessor may be terminated at the end of the calendar year during which such succession occurred, provided that the predecessor did not within such calendar year subsequent to the date of succession render employment or pay wages sufficient to remain an employer as defined in Section 41-27-210.

6. (6) The provisions of this section shall not be applicable to any employing unit for services performed in employment as defined by Section 41-27-230(2).

   For the purpose of this section, the two or more employing units mentioned in items (3) and (4) of Section 41-27-210 shall be treated as a single employing unit.