Modifications
A State may modify a program described in paragraph (1) from time to time so long as it continues to meet the requirement of subparagraph (A) and does not reduce the actuarial value of the coverage under the program below the lower of—
(A) the actuarial value of the coverage under the program as of August 5, 1997 , or
(B) the actuarial value described in subsection (a)(2)(B),
evaluated as of the time of the modification.