A non qualified deferred compensation plan is a strategy companies use to provide additional supplemental benefits to their key people. A deferred retirement option plan, or DROP, is a way for an employee who would otherwise be eligible to retire to keep working.The City of Houston 457 Deferred. Compensation Plan is a powerful tool to help you reach your retirement dreams. If you wish to enroll in Deferred Compensation you have 30 days from your date of hire to enroll retroactive to your original date. Deferred compensation plans allow the participant to defer income today and withdraw it at some point in the future (usually upon retirement) DROP is a retirement benefit that allows Tier 1 public safety members who are already eligible for retirement to continue working while collecting a salary. Used to authorize a salary reduction and deferral of compensation for groups offering both plans to employees with ROTH deferral available.