Senate committee substitute makes the following changes to the 3rd edition.

Modifies proposed GS 136-18(46) to more specifically grant authority for the Department of Transportation (DOT) to enter into partnership agreements with private entities with regard to communications infrastructure supporting transportation infrastructure on the Interstate System as defined by specified federal law. Additionally, limits the authority granted by the new subsection to projects which receive federal discretionary grants issued by the US Department of Transportation. 

Adds a directive requiring DOT to consult and coordinate with private telecommunications industry entities regarding the authority granted under Section 5 of the act. Requires DOT to report its findings and legislative recommendations to the specified NCGA committee by March 1, 2020.