SCAIHS is the legal homeschool option in South Carolina that is often referred to as "Option 2".
You can learn more about SCAIHS on their website: SCAIHS
Here is all of the legal info:
SECTION 59-65-45. Alternative home schooling requirements.
In lieu of the requirements of Section 59-65-40, parents or guardians may teach their children at home if the instruction is conducted under the auspices of the South Carolina Association of Independent Home Schools. Bona fide membership and continuing compliance with the academic standards of South Carolina Association of Independent Home Schools exempts the home school from the further requirements of Section 59-65-40.
The State Department of Education shall conduct annually a review of the association standards to insure that requirements of the association, at a minimum, include:
(a) a parent must hold at least a high school diploma or the equivalent general educational development (GED) certificate;
(b) the instructional year is at least one hundred eighty days; and
(c) the curriculum includes, but is not limited to, the basic instructional areas of reading, writing, mathematics, science, and social studies, and in grades seven through twelve, composition and literature.
By January thirtieth of each year, the South Carolina Association of Independent Home Schools shall report the number and grade level of children home schooled through the association to the children's respective school districts.
HISTORY: 1992 Act No. 313, Section 1.
SECTION 59-65-46. Home schooling of foster child.
A foster parent may teach a foster child at home as provided in Sections 59-65-40, 59-65-45, or any other provision of law, if, in addition to any other requirements, home schooling of the child has been approved by the Department of Social Services or other agency having custody of the child.