The City of Boston (the City), acting by and through its City Auditor (the Official), hereby requests sealed proposals from interested and qualified parties (Offerors) to provide actuarial and consulting services for the calculation of actuarial liabilities, assets and associated normal costs for postemployment benefits (OPEB) other than pensions as defined by Governmental Accounting Standards Board in Statements No.43 and 45 and any related technical bulletins and pronouncements.