No policy of group life insurance shall be delivered in this State unless it contains in substance the provisions set forth in §§ 3113-3127 of this title or provisions which in the opinion of the Commissioner are more favorable to persons insured, or at least as favorable to the persons insured and more favorable to the policyholder; provided, however:
(1) That §§ 3117, 3119-3123, 3125 and 3127 of this title shall not apply to policies insuring persons under § 3103 of this title;
(2) That the standard provisions required for individual life insurance policies shall not apply to group life insurance policies; and
(3) That if the group life insurance policy is on a plan of insurance other than the term plan, it shall contain a nonforfeiture provision or provisions which in the opinion of the Commissioner is or are equitable to the insured persons and to the policyholder, but nothing herein shall be construed to require that group life insurance policies contain the same nonforfeiture provisions as are required for individual life insurance policies.