sponsor has 2 plans with identical plan numbers.

[Lori H]

A sponsor maintains a pension plan(plan number 001), several years later they are sold a 401(k). The seller, fully knowing the existence of the pension plan, assigns plan number 001 to the 401(k). Any suggestions on changing the pn for the 401(k)?

[WDIK]

Draft an amendment to the plan document, update the SPD and report the new number on Form 5500 filing.