1.Log in to your online Defined Contribution Plan account. Meet with a deferred compensation representative to complete paperwork.Q: How do I enroll in the 457(b) Plan? A: In order to complete your enrollment in the 457(b) Plan, you must complete the applicable enrollment form. Box 12a—Deferred compensation. Box 13—For third-party sick pay use only. If you are already enrolled in DCP, do not use this form. There are two ways to enroll in the deferred compensation plan.