States hope to enroll 320,000 people in first year

State officials say website has been tested to avoid technical glitches

Estimates are that more than 400,000 people statewide will be eligible, including 12,000 to 15,000 in Kalamazoo County

Details are still being worked out on incentives designed to provide individual responsibility to health care expansion

Eventually the expansion is expected to cover 470,000 people