(a) Any disability beneficiary, upon recommendation of the medical advisors, may be referred to the division of vocational rehabilitation, or other rehabilitation agencies, to determine whether the beneficiary is physically and/or mentally capable of retraining for some type of gainful employment.
(b) The recommendation of such agencies shall be considered by the medical advisors and board of trustees to determine the eligibility of a member to continue monthly disability benefits.
(c) Should any disability beneficiary refuse the services of such agency, such refusal shall be treated in the same manner as a refusal to be reevaluated and may result in the suspension of monthly benefits.