Who is considered an "interested person" for purposes of the VFCP notice under PTE 2002-51 (as amended in 2006)? Has anyone taken the position that (or asked the DOL whether) it is limited to only those participants and beneficiaries affected by the failure, or must the notice be given to all participants/beneficiaries in the plan (like the determination letter NIP)? I could not find any guidance on this, so just wondering about other practitioner's thoughts/experiences.