29 CFR 1404.6 - Inactive status.
(a) A member of the Roster who continues to meet the criteria for listing on the Roster may request that he or she be put in an inactive status on a temporary basis because of ill heath, vacation, schedule or other reasons.
(b) Arbitrators whose schedules do not permit cases to be heard within six months of assignment are encouraged to make themselves inactive temporarily until their caseload permits the earlier scheduling of cases.
(c) An arbitrator can remain on inactive status without paying any annual listing fee for a period of two (2) years. If an arbitrator is on inactive status for longer than two (2) years, the arbitrator will be removed from the Roster unless he or she pays the annual listing fee.