The Massachusetts secretary of state's office has determined that three of the four initiatives submitted for the November ballot have gathered sufficient signatures. They would repeal the state's sales tax on alcohol, reduce the sales tax rate from 6.25 percent to 3 percent, and repeal a law that establishes a streamlined permitting process for low- to moderate-income housing. The fourth initiative that failed to submit sufficient signatures would have limited carbon dioxide emissions from certain renewable and alternative energy sources.