W. Va. Code § 49-2-203

For purposes of this article, no contractor employee of the department may exceed three families during any period of time when that contractor employee is engaged in providing intensive, short term home-based family preservation intervention. In addition, no caseload may exceed six families during any period of time when home-based aftercare is provided pursuant to this article. When providing either type of home-based family preservation services to any family, the department or contractor shall provide trained personnel who shall be available during nonworking hours to assist families on an emergency basis.