The installer of sunscreening film (whether a consumer or professional window tinter) must apply a certificate of compliance (not to exceed 2" square) between the film and the glazing (glass) on the lower left corner of each glazing surface as viewed from the outside of the vehicle. This sticker must be furnished by the professional window tinter or the retail store selling to a consumer who will install the product himself or have the product installed by someone other than a professional window tinter. This certificate must contain the percentage of light transmittance allowed by the material and must identify the installer or retailer by name, address and telephone number, and the date of installation.
S.C. Code Regs. § 38-621