No safety zones or platforms, commonly called "safety isles" , traffic signal devices, guideposts or any other structures shall be erected, constructed, operated or maintained in, over or upon a state highway, without the permission of the state highway commission first having been obtained.
N.J. Stat. Ann. § 39:4-199
Safety zones, signals, guideposts and other structures on state highway; approval by highway commission
Current official text: New Jersey Legislature. Digitized from the New Jersey Legislature bulk statutes download. Reproduced from public-domain New Jersey statutes; confirm against the official source for the current text. Not legal advice.