Four more states have applied to operate health insurance marketplaces in partnership with the Department of Health and Human Services, HHS Secretary Kathleen Sebelius said in a blog post today. Friday was the deadline for states to apply for a partnership exchange. According to HHS, Arkansas, Delaware and Illinois have received conditional approval to operate a partnership marketplace; Iowa, Michigan, New Hampshire and West Virginia have applied to operate a partnership marketplace; and several states have suggested other approaches to contributing toward health plan management in their marketplace. Another 17 states and the District of Columbia have received conditional approval to operate a state-based exchange. For more information, visit cciio.cms.gov.