Each PSB must improve the economic, social, environmental and cultural well-being of its area by working to achieve the well-being goals.
Rhaid i bob Bwrdd Gwasanaethau Cyhoeddus wella llesiant economaidd, cymdeithasol, amgylcheddol a diwylliannol ei ardal drwy weithio i gyflawni’r nodau llesiant.