A supplemental retirement plan that allows employees to contribute a portion of their pretax salary, within certain Internal Revenue Service (IRS) limits. The present document represents a restatement in its entirety of the Plan provisions, effective December 15, 2020.Statement of Investment Policies and Guidelines for the San Bernardino County 457(b) Deferred Compensation Plan, 401(k). In this guide, we've segmented the retirement planning stages into: Before Retirement, At Retirement, and After Retirement. A deferred compensation plan withholds a portion of an employee's pay until a specified date, usually retirement. • Deferred compensation, such as a 401(k) or 457 plan. • Social Security. Pick the fund with the date closest to your target date.