The 2018 UKWA Rules, (‘Constitution’), may be accessed via this link.
Wayfarer Class Rules:
The Wayfarer Class Rules are controlled by the Wayfarer International Committee (‘WIC’). Follow this link to visit the WIC website for the current Wayfarer International Constitution.
International Class Rules:
The International Class Rules are within the authority of WIC, and are linked here.
The article on Permitted Electronic Compasses‘ may be of interest.
See also the recent discussion regarding ‘Windows in Sails’.