"Deferred compensation plan" means a plan established pursuant to the provisions of § 457(b) of the Internal Revenue Code of 1986, as amended. All voluntary contributions are placed into the.Hybrid 457 Deferred Compensation Plan. To enroll online: Set up your online access and log in. Select Enroll from the COV 457 Deferred Comp Plan dropdown menu. Participate in the Plan. To become a Participant under the Plan, an Employee must complete the. A 457(b) plan is a tax-deferred retirement savings plan. Funds are withdrawn from an employee's income without being taxed and are only taxed upon withdrawal. Saving on a tax-deferred basis is one of the easiest ways to put aside additional income for retirement.