Civil servants, State workers and contract employees under public law working in an armed forces hospital or in another component of the armed forces health service, made available to a public law grouping of health cooperation resources, are represented on the social committee of the establishment of this grouping under the conditions provided for in article L. 6144-3-1. Subject to service requirements, special leave of absence, which is not taken into account when calculating annual leave, is granted to their representatives in respect of their participation.