Section 56-5-1890 - No-passing zones(a) The Department of Transportation and local authorities may determine those portions of any highway under their respective jurisdictions where overtaking and passing or driving on the left of the roadway would be especially hazardous and may by appropriate signs or markings on the roadway indicate the beginning and end of such zones and when such signs or markings are in place and clearly visible to an ordinarily observant person every driver of a vehicle shall obey the directions thereof.(b) Where signs or markings are in place to define a no-passing zone as set forth in subsection (a) no driver shall at any time drive on the left side of the roadway within such or on the left side of any pavement striping designed to mark such no-passing zone throughout its length.(c) This section shall not apply under the conditions described in item 2, subsection (a) of Section 56-5-1810 nor to the driver of a vehicle turning left into or from an alley, private road or driveway.1993 Act No. 181, Section 1409; 1977 Act No. 143 Section 5; 1949 (46) 466; 1952 Code Section 46-389; 1962 Code Section 46-389.