COLUMBIA, S.C. - Legislation requiring health insurers in South Carolina to include coverage for some mental illnesses is headed to Gov. Mark Sanford's desk.

The House adopted the conference committee's report Thursday.

The legislation doesn't cover drug or alcohol addiction treatments and would not be required on policies for businesses with 50 or fewer workers. It's similar to legislation now on the books in 33 states, according to the National Alliance for the Mentally Ill of South Carolina.