The Committee on Pension Plan Financial Reporting (PPFRC) is issuing this explanatory report to provide members with additional information and details on the analysis done for the guidance outlined in the educational note supplement dated October 25, 2021 (Guidance for Assumptions for Hypothetical Wind-Up and Solvency Valuations Update – Effective September 30, 2021, and Applicable to Valuations with Effective Dates on or after September 30, 2021, and no later than December 30, 2021), issued as a supplement to the educational note dated March 10, 2021.