O fis Ebrill 2011, bydd gan Lywodraeth y Cynulliad Gynllun Buddsoddi Carbon a fydd yn codi tâl ar adrannau am bob taith awyr, pob taith fflyd Gweinidogol a phob taith car llog. Bydd y newidiadau hyn yn effeithio ar Weinidogion a swyddogion.
From April 2011, the Assembly Government will have a Carbon Investment Scheme which will levy a charge on departments for each journey made by air travel, by Ministerial fleet travel and by hire car travel. These charges will apply to Ministers and officials.