S.C. Code Ann. § 50-9-1130: Deduction of accumulated points.

(A) Each time a person is convicted of a violation enumerated in Section 50-9-1120, the number of points assigned to the violation must be charged against the person. For each calendar year that passes after assignment in which the person received no points, the department shall deduct one-half of the accumulated points if the total number of points is greater than three. If a person has three or less points at the end of a calendar year in which no points were received, the department shall reduce his point total to zero; however, a person's record must not be less than zero points.

(B) The department shall deduct four accumulated points from a person's record upon a showing that the person successfully completed a department program of instruction established pursuant to Section 50-9-310.

(C) A person is not eligible for a reduction in points under the provisions of subsection (B) if at the time he accumulated eighteen or more points:

(1) he had any hunting, trapping, or fishing suspension within the previous five years; or

(2) he had a previous point reduction under the provisions of subsection (B) within the previous five years.

(D) The department is authorized to promulgate appropriate regulations to effectuate the provisions of this section.