Regulations of Connecticut State Agencies
A centerline separates traffic traveling in opposite directions. It need not be at the geometrical center of the pavement. The centerline markings on two-lane, two-way highways shall be either:
(1) a normal broken yellow line where passing is permitted; or
(2) a double line consisting of a normal broken yellow line and a normal solid yellow line where passing is permitted in one direction, or
(3) a double line consisting of two normal solid yellow lines where passing is prohibited in both directions.
The centerline on undivided highways, where four or more lanes are always available, shall be a double solid yellow line. On a three-lane highway, two lanes shall be designated in one direction.
(Effective November 3, 1982)