Rev. Proc. 2000-27 provides that the remedial amendment period for a government plan expires as follows:
.01 The remedial amendment period for governmental plans, as defined in sec. 414(d), is extended to the later of (i) the last day of the first plan year beginning on or after January 1, 2001, or (ii) the last day of the first plan year beginning on or after the "2000 legislative date" (that is, the 90th day after the opening of the first legislative session beginning after December 31, 1999, of the governing body with authority to amend the plan, if that body does not meet continuously).
Technically the "2000 legislative date" would allow calendar year state plans to amend their plan no later than the end of 2002 if a legislature did not meet in 2000, but met in 2001. However, I do not know how that exception has been interpreted. For example, is it broadly interpreted to allow an extended date for all plans created by state law in which the state legislature does not meet continuously. Or is there also a requirement that in order for this exception to apply that the state plan must be unable to be amended except by act of the legislature?
Would it matter if the state agency that has administers the plan has the express or implied authority to amend the plan in matters that don't affect substantive rights of participants?