House committee substitute makes the following changes to 1st edition. Requires the amendment to the North Carolina Constitution to reduce the maximum income tax to be submitted to voters in a statewide general election to be held in November of 2018. Previously the act specified that the vote would be held on November 6, 2018. Requires the Bipartisan State Board of Elections and Ethics Enforcement to certify the amendment to the Secretary of State if the vote is favorable. Previously required the State Board of Elections to certify the amendment. Makes other clarifying and technical changes.