Opinion letters from PBGC’s Office of the General Counsel explain how the agency would apply Title IV of ERISA and regulations thereunder to a certain set of facts. PBGC opinion letters are stored in a database that contains all opinion letters issued by OGC since the establishment of PBGC in 1974.
You can search the database below by keyword, and filter to show only opinion letters currently in effect, or to include withdrawn letters.
| Title | Issue Date | Topics | Summary |
|---|---|---|---|
| Opinion Letter 79-010 (Withdrawn) | Pre-MPPAA withdrawals | PBGC answered several questions on the application of pre-MPPAA withdrawal rules. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 79-004 (Withdrawn) | Pre-MPPAA withdrawals | PBGC answered several questions on the application of pre-MPPAA withdrawal rules. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 79-003 (Withdrawn) | Pre-MPPAA withdrawals | PBGC answered several questions on the application of pre-MPPAA withdrawal rules. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 78-028 (Withdrawn) | Multiemployer liability | PBGC had not yet developed regulations to allocate liability under 4064. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 78-013 (Withdrawn) | Employer liability | PBGC waived part of a plan sponsor’s liability to avoid unreasonable hardship. Withdrawn: Not helpful guidance. The specific facts of this letter might not prove illustrative of likely outcomes. As a result, this letter has been rescinded. (02/12/2026) |
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| Opinion Letter 78-011 (Withdrawn) | Employer liability, Multiemployer liability |
PBGC answered several question on the application of pre-MPPAA multiemployer termination rules. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 78-005 (Withdrawn) | Pre-MPRA14 partitions | PBGC makes partition terminations on a case-by-case basis. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 78-003 (Withdrawn) | Pre-MPRA14 withdrawals | PBGC waived liability for an employer withdrawal because of a satisfactory indemnity agreement. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 77-173 (Withdrawn) | Pre-MPPAA withdrawals | Withdrawing employer must provide PBGC with appropriate security for its share of the Plan’s insufficiency. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 77-172 (Withdrawn) | Coverage | This letter addresses a question as to whether defined benefit plans established and maintained in Puerto Rico are subject to the provisions of Title IV of ERISA. Withdrawn: PBGC does not consider a plan to be covered under Title IV of ERISA where its trust is created or organized outside the U.S. and no §1022(i)(2) election has been made. (04/19/2013) |
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| Opinion Letter 77-167 (Withdrawn) | Reportable event | Sale of assets doesn’t in itself constitute a reportable event, but it may result in an active participant reduction. Withdrawn: Superseded by regulation. ERISA Section 4043.23 – Active Participant Reduction – see examples provided (02/12/2026) |
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| Opinion Letter 77-165 (Withdrawn) | Contingent liability | PBGC has not yet established its contingent liability insurance program. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 77-158 (Withdrawn) | Allocation of assets | Plan administrator was required to perform allocation of assets. PBGC requested information to compute liability to the corporation. Withdrawn: The guidance is out-of-date as PBGC trustees all plans in underfunded SE terminations and performs all section 4044 allocations. Also, its discussion on termination liability is outdated because, since 1986, PBGC’s employer liability claim covers all unfunded plan benefits, not just those benefits guaranteed by PBGC. (02/12/2026) |
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| Opinion Letter 77-134 (Withdrawn) | Reportable event | Participant reduction reportable event occurred based on facts provided. Withdrawn: Superseded by regulation. ERISA Section 4043.23 – Active Participant Reduction – see definition (02/12/2026) |
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| Opinion Letter 76-121 (Withdrawn) | Reportable event | The reduction in the number of plan participants is a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.23 – Active Participant Reduction – see definition (02/12/2026) |
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| Opinion Letter 76-114 (Withdrawn) | Reportable event | Elimination of a death benefit is a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.22 -Amendment Decreasing Benefits Payable – Notice is waived for this event in its entirety (02/12/2026) |
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| Opinion Letter 76-104 (Withdrawn) | Termination, Distribution of assets |
Distribution of annuity contracts. Withdrawn: This opinion letter is outdated. The procedures for a sufficient plan were amended and codified in the 1986 SEPPAA legislation and are in current PBGC standard termination regulations. (02/12/2026) |
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| Opinion Letter 76-097 (Withdrawn) | Multiemployer plan | Applicability of title IV to plan terminations occurring between July 1, 1974 and September 2, 1974. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |
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| Opinion Letter 76-052 (Withdrawn) | Reportable event | Sale of divisions resulting in more than 20% reduction in number of plan participants is a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.23 – Active Participant Reduction and 4062(e) – see definitions (02/12/2026) |
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| Opinion Letter 76-050 (Withdrawn) | Premiums | Whether an annuitant is a plan participant. Withdrawn: Superseded by regulation and premium filing instructions. (02/12/2026) |
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| Opinion Letter 76-046 (Withdrawn) | Reportable event | Change in funding method does not constitute a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.28 Plan merger, consolidation or transfer - notice is waived for this event in its entirety (02/12/2026) |
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| Opinion Letter 76-041 (Withdrawn) | Reportable event | Closing plant covering 6% of the employees in the plan is not a reportable event. Failure to pay benefits when due would be a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.23 – Active Participant Reduction and 4043.26 Inability to Pay Benefits When Due – see definitions (02/12/2026) |
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| Opinion Letter 76-033 (Withdrawn) | Reportable event, Mergers and transfers |
Plan merger constitutes a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.28 Plan merger, consolidation or transfer - Notice is waived for this event in its entirety (02/12/2026) |
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| Opinion Letter 76-024 (Withdrawn) | Reportable event | PBGC approval is not needed to merge a single employer plan into a multiemployer plan, but such a transaction would be a reportable event. Withdrawn: Superseded by regulation. ERISA Section 4043.28 Plan merger, consolidation or transfer - Notice is waived for this event in its entirety (02/12/2026) |
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| Opinion Letter 76-021 (Withdrawn) | Multiemployer plan | Partial termination is not an insurable event. Withdrawn: Obsolete. No longer applicable since the passage of MPPAA in 1980. (02/12/2026) |