29 CFR 4050.4 : Labor (§ 0.735-1 To Parts 4908-4999) — (Part 1927 To Parts 4908-4999) — Regulations Relating To Labor (Continued) (Part 1927 To Parts 4908-4999) — Pension Benefit Guaranty Corporation (§ 4000.1 To Parts 4908-4999) — Plan Terminations (§ 4041.1 To Appendix B To Part 4050) — Missing Participants (§ 4050.1 To Appendix B To Part 4050) — Diligent search.

(a) Search required. A diligent search must be made for each missing participant before information about the missing participant or payment is submitted to the PBGC pursuant to § 4050.6.

(b) Diligence. A search is a diligent search only if the search -

(1) Begins not more than 6 months before notices of intent to terminate are issued and is carried on in such a manner that if the individual is found, distribution to the individual can reasonably be expected to be made on or before the deemed distribution date;

(2) Includes inquiry of any plan beneficiaries (including alternate payees) of the missing participant whose names and addresses are known to the plan administrator; and

(3) Includes use of a commercial locator service to search for the missing participant (without charge to the missing participant or reduction of the missing participant's plan benefit).