Senate committee substitute makes the following changes to 2nd edition. Amends GS 153A-210.1 to create new subsection (b), providing that Article 9A of GS Chapter 153A (Special Assessments for Critical Infrastructure Needs) expires July 1, 2016, and clarifies that the expiration does not affect the validity of assessments imposed or bonds issued or authorized under the provisions of the Article before its expiration. Makes similar amendment to GS 160A-239.1.