A regulation is considered content-neutral if it regulates only the time, place, and manner of speech without reference to the communicative content. The essential considerations include whether the government’s interest is unrelated to the content of the speech and whether the incidental restriction on free expression is no greater than is essential to further that interest.
For example: A city enacts a noise ordinance that restricts loudspeakers in residential areas after 10 PM. Although it limits when and where speech may occur, it does so without regard to what is being said.