state action

Definition from Nolo’s Plain-English Law Dictionary

The involvement of a government in a particular activity. Certain constitutional claims prohibit only state action, not private activities. For example, the right to free speech enshrined in the First Amendment of the U.S. Constitution gives people a right against laws that restrict their speech, not against private efforts to restrict speech (for example, by a private employer).

Definition provided by Nolo’s Plain-English Law Dictionary.