California Vehicle Code Section 21370 Regulation of Traffic Construction Zone
21370 The Department of Transportation, or its duly authorized representatives with the approval of the department, while engaged in the construction of a state highway upon new alignment may restrict the use of and regulate the movement of traffic upon any highway intersecting the project at or near the place of intersection whenever such work interferes with or endangers the safe movement of traffic through the work.
Amended Ch. 545, Stats. 1974. Effective January 1, 1975.