S.C. Code Ann. § 55-3-130

The pointing, aiming, or discharge of a laser device at an aircraft in flight or on the ground while occupied is unlawful. A person who wilfully and maliciously discharges a laser at an aircraft, whether stopped, in motion or in flight, while occupied, is guilty of a misdemeanor punishable by imprisonment for not more than one year or by a fine of two thousand dollars, or both. For a second or subsequent violation of this section a person is guilty of a felony punishable and must be imprisoned for not more than three years, or fined not more than five thousand dollars, or both. This section does not apply to the conduct of laser development activity by or on behalf of the United States Armed Forces. A person who, with the intent to interfere with the operation of an aircraft, wilfully shines a light or other bright device, of an intensity capable of impairing the operation of an aircraft, at an aircraft, must be punished by a fine not exceeding one thousand dollars, or by imprisonment not exceeding one year, or both. As used in this section, "laser" means a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating coherent electromagnetic radiation in the ultraviolet, visible, or infrared region of the spectrum, and when discharged exceeds one milliwatt continuous wave.