A Request for Comments (RFC), in the context of Internet governance, is a type of publication from the Internet Engineering Task Force (IETF) and the Internet Society (ISOC), usually describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. Almost every April Fools' Day (1 April) since 1989, the Internet RFC Editor has published one or more humorous Request for Comments (RFC) documents, following in the path blazed by the June 1973 RFC called ARPAWOCKY, a parody of Lewis Carroll's nonsense poem "Jabberwocky". The following list also includes humorous RFCs published on other dates.

List of April Fools' Day RFCs

Other humorous RFCs

NULL(b) = I(b) = b , provides the means for Encapsulating Security Payload to provide authentication and integrity, but without confidentiality.

Submission of April Fools' Day RFCs

The RFC Editor accepts submission of properly formatted April Fools' Day RFCs from the general public, and considers them for publication in the same year if received at least two weeks prior to April 1st. This practice of publishing April Fool's Day RFCs is specifically acknowledged in the instructions memo for RFC authors, with a tongue-in-cheek note saying: "Note that in past years the RFC Editor has sometimes published serious documents with April 1 dates. Readers who cannot distinguish satire by reading the text may have a future in marketing."