Guidance Setting exceptions to the 20mph default speed limit for restricted roads How highway authorities can set exceptions to 20mph speed limits on restricted roads in Wales. Part of: 20mph speed limits First published: 8 November 2022 Last updated: 8 November 2022 Documents Setting exceptions to the 20mph default speed limit for restricted roads Setting exceptions to the 20mph default speed limit for restricted roads , HTML HTML Related Written Statement: Publication of Exceptions Guidance to 20mph speed limits