(a) This section applies only if children are eligible for coverage under the terms of a multiple employer welfare arrangement’s plan document.
(b) A multiple employer welfare arrangement plan document may not limit or exclude initial coverage of an adopted child of a participating employee. A child is considered to be the child of a participating employee if the participating employee is a party to a suit in which the employee seeks to adopt the child.

(c) An adopted child of a participating employee may be enrolled, at the employee’s option, not later than the 31st day after:
(1) the date the employee becomes a party to a suit in which the employee seeks to adopt the child; or
(2) the date the adoption becomes final.
(d) Coverage of an adopted child of a participating employee under this section ends unless the multiple employer welfare arrangement receives notice of the adoption and any required additional premiums not later than the 31st day after:
(1) the date the participating employee becomes a party to a suit in which the employee seeks to adopt the child; or
(2) the date the adoption becomes final.