"In the event multiple entities are in the picture, a Related Employer analysis must consider every possible pair of entities until all two-employer Groups are identified.... With little or no notice, a subsidiary employer may find itself outside of a Controlled Group ... This may create compliance hassles not only for affected retirement plans, which must re-structure formally to recognize the new arrangement, but also for health and welfare benefits ... Fortunately for retirement plans, the applicable regulations afford a little time to the affected employers to address the effects of a change in Group status, but there is no such transition period for health and welfare plans."  MORE >>