Plans described
A plan is described in this subparagraph if, taking into account any predecessor plan—
(i)#
such plan has been in effect for at least 5 years as of the date the class is closed, and
(ii)#
during the 5-year period preceding the date the class is closed, there has not been a substantial increase in the coverage or value of the benefits, rights, or features described in subparagraph (A) or in the coverage or benefits under the plan described in subparagraph (B)(iii) (whichever is applicable).