Cafodd y Fframwaith Safonau Moesegol i Gymru ei sefydlu gan Ran 3 o Ddeddf Llywodraeth Leol 2000 i hyrwyddo a chynnal safonau uchel o ymddygiad moesegol gan aelodau a swyddogion yr awdurdodau perthnasol yng Nghymru. Mae ‘awdurdod perthnasol’ yn golygu cyngor sir neu gyngor bwrdeistref sirol (sef prif gyngor), cyngor cymuned, awdurdod tân ac achub, ac awdurdod Parc Cenedlaethol yng Nghymru.
The Ethical Standards Framework for Wales was established by Part 3 of the Local Government Act 2000 to promote and maintain high standards of ethical conduct by members and officers of relevant authorities in Wales.  A ‘relevant authority’ is a county or county borough council (“a principal council”), a community council, a fire and rescue authority and a National Park authority in Wales.