language planning interventions on a regional/area level: for example, Welsh in Education Strategic Plans; town and country planning; economic development; mentrau iaith.etc
ymyraethau cynllunio ieithyddol ar lefel rhanbarthol/ardal: er enghraifft Cynlluniau Strategol y Gymraeg mewn Addysg; cynllunio gwlad a thref; datblygu economaidd; mentrau iaith ayb