Ins. Code Section 1131.254
(a)The policy must cover at least 100 individuals on the date the policy is issued unless the policy is issued to the trustees of a fund established by:
(1)employers that have assumed obligations through a collective bargaining agreement and are participating in the fund to:
(A)comply with those obligations with regard to one or more classes of their employees who are covered by the collective bargaining agreement; or
(B)provide insurance benefits for other classes of their employees; or
(2)one or more labor unions.
(b)A policy as to which the insureds are to pay part of the premium from funds contributed specifically for their insurance may take effect only if at least 75 percent of the individuals of each participating employer unit who are eligible on the date the policy takes effect, excluding any individuals as to whom evidence of insurability is not satisfactory to the insurer, elect to make the required contributions.
(c)A policy as to which the insureds do not pay any part of the premium must insure:
(1)all eligible individuals; or
(2)all eligible individuals except any individuals as to whom evidence of individual insurability is not satisfactory to the insurer.
Section 1131.254 — Minimum Enrollment,
https://statutes.capitol.texas.gov/Docs/IN/htm/IN.1131.htm#1131.254 (accessed Dec. 2, 2023).