Perennial sources list

The perennial sources list (abbreviated as RSP for "reliable sources/perennial" or in shortcut form, WP:RSP) is a community-maintained list on the English Wikipedia that classifies sources by degrees of reliability. It was established in 2018. The ratings, which are determined through public discussion and consensus, have received significant news coverage.

Ratings on the list are not meant to function as "pre-approved sources that can always be used without regard for the ordinary rules of editing", nor is the list a "list of banned sources that can never be used or should be removed on sight".