21.1. The County shall contribute a sum equal to ninety percent (90%) of the premium for employees and eligible dependents, including young adult dependents and domestic partners. All employees, except employees enrolled in the Building Trades Health Plan, must participate in one of these plans.

21.2. The County shall provide vision care coverage for the individual employee and eligible dependents, including adult dependents, domestic partners, and the children and adult dependents of domestic partners. The County will pay the entire premium for this coverage.