Senate committee substitute to the 2nd edition makes the following changes. Amends GS 75A-5 to simplify the fees structure for certificates of number to include only the following: (1) fee for a one-year period is $25 for a vessel less than 26 feet in length and $50 for a vessel 26 feet or more in length and (2) fee for a three-year period is $75 for a vessel that is less than 26 feet in length and $150 for a vessel that is 26 feet or more in length. Also deletes the provision providing that no fee is required for a period of one year for renewal of certificates of number that have been previously issued to commercial fishing vessels upon compliance with the requirements of GS 75A-5.1. Repeals GS 75A-5.1 (Commercial fishing vessels; renewal of identification number).

Changes the name of the Shallow Draft Inlet Dredging Fund in new Part 8B to the Shallow Draft Navigation Channel Dredging Fund (Fund) and makes conforming changes throughout the act. Provides that revenue in the Fund may only be used to provide the state's share of the costs associated with any dredging project designed to keep a shallow draft navigation channel (was, shallow draft inlet) located in state waters navigable and safe. Amends the definition of shallow draft navigation channel (was, shallow draft inlet) to also mean other interior coastal waterways.

Amends GS 105-449.426 to require the Secretary of Revenue to credit, on an annual basis, to the Fund 1/6 of 1% of the amount that is allocated to the Highway Fund under GS 105-449.125 and is from the excise tax on motor fuel. Revenue credit to the Fund may be used only for the dredging activities described in GS 143-215.73F. Makes conforming changes to GS 143-215.73F.

Changes the act's effective date from July 1, 2013, to October 1, 2013.