Which piece of governmental regulation of sexual material on the internet was declared a violation of freedom of speech?

The answer is the Communications Decency Act. This was the first prominent effort by the US Congress to control sexual material on the Internet. It was presented in 1995 to the Senate Committee of Commerce, Science, and Transportation by Representatives Slade Gorton and James Exon. By an 84–16 vote on June 14, 1995, the amendment became the CDA was additional to the Telecommunications Act in the Congress. The significance of this act is: Initially, it tried to control both obscenity and vulgarity in cyberspace. Second, Section 230 of the Act has been understood to say that operatives of Internet services are not to be interpreted as publishers