Hutchinson The activist group People for the Ethical Treatment of Animals is objecting to conditions imposed by Kansas State Fair officials on its planned exhibit.
PETA said Wednesday the restrictions amount to unconstitutional censorship of its message.
The fair takes place Sept. 7-16 in Hutchinson.
Fair officials say any videos or pictures of animals being decapitated, dismembered or butchered must not be readily visible outside PETA's booth, so that fairgoers will have to make a conscious choice to view the material.
PETA calls the condition a content-based restraint on its free speech. It contends that since the fair is a public forum, restrictions based on viewpoint are prohibited.
A fair official referred questions Wednesday to general manager Denny Stoecklein, who did not immediately return a message.