§21–802.1.

    (a)    In this section, “highway work zone” means a construction or maintenance area on or alongside a highway that is marked by appropriate warning signs or other traffic control devices designating that work is in progress.

    (b)    (1)    The State Highway Administration may reduce established speed limits in a highway work zone upon a determination that the change is necessary to ensure the public safety.

        (2)    A county may:

            (i)    Designate an area on a county highway or a highway on which the county is authorized to do work pursuant to a maintenance agreement as a highway work zone; and

            (ii)    Reduce established speed limits in the highway work zone after a determination that the change is necessary to ensure the public safety.

        (3)    A municipal corporation may:

            (i)    Designate an area on a municipal highway or a highway on which the municipal corporation is authorized to do work pursuant to a maintenance agreement as a highway work zone; and

            (ii)    Reduce established speed limits in the highway work zone after a determination that the change is necessary to ensure the public safety.

    (c)    A speed limit established under this section shall become effective when posted.

    (d)    A person convicted of a violation of this section is subject to a fine not exceeding $1,000.