South Carolina Code of Laws — Title 12 (Taxation)
S.C. Code Ann. § 12-4-70 — Restriction on political activity and other acts of chairman interfering with or inconsistent with duties
The director of the department shall devote the time required to perform the duties of the office and may not:
(1) engage in any occupation or business interfering with or inconsistent with his duties;
(2) serve on or under a committee of a political party; or
(3) contribute, directly or indirectly, money or anything of value in support of a candidate for office or to a political organization.
Source: official text