Section 5573 - Vested right to service pension(a) A member who has 5 years of credited service shall have a vested right to a pension.(b) An inactive member's vested right shall be forfeited upon an application for a refund of the member's accumulated contributions and cancellation of membership.62 Del. Laws, c. 398, §1; 68 Del. Laws, c. 364, §2; 70 Del. Laws, c. 186, § 1.;