Where urgent or major changes are required, each party will do its utmost to give the other reasonable notice and to respond as quickly as possible within any agreed time-scale.
Caiff unrhyw gyfathrebu â’r cyfryngau a'r cyhoedd ei reoli ar y cyd ac mae’r partïon perthnasol yn cael eu hysbysu mewn da bryd er mwyn sicrhau y glynir wrth yr amserlenni angenrheidiol.