Mae’r Fframwaith yn cynnwys deg o egwyddorion cyffredinol fel sail i ymddygiad aelodau (sef egwyddorion sy’n deillio o Saith Egwyddor Bywyd Cyhoeddus yr Arglwydd Nolan). Maent wedi eu cynnwys yng Ngorchymyn Ymddygiad Aelodau (Egwyddorion) (Cymru) 2001. Ar ben hynny, mae Gorchymyn Awdurdodau Lleol (Cod Ymddygiad Enghreifftiol) (Cymru) 2008 (“Cod Ymddygiad Enghreifftiol”) yn darparu ar gyfer set o safonau gofynnol y gellir eu gorfodi mewn perthynas â sut y dylai aelodau ymddwyn, wrth gyflawni eu swyddogaethau swyddogol ac (mewn rhai achosion) o ran eu gweithgareddau yn eu bywyd personol. Mae hefyd yn cynnwys darpariaethau sy’n ymwneud â datgan a chofrestru buddiannau. Gan mwyaf, mae’r Fframwaith wedi parhau heb ei newid, er i nifer o newidiadau gael eu gwneud i wella sut mae wedi gweithredu yn ystod yr ugain mlynedd diwethaf.
The Framework consists of ten general principles of conduct for members (derived from Lord Nolan’s ‘Seven Principles of Public Life’). These are included in the Conduct of Members (Principles) (Wales) Order 2001. Further, the Local Authorities (Model Code of Conduct) (Wales) Order 2008 (“Model Code of Conduct”) provides for a set of enforceable minimum standards for the way in which members should conduct themselves, both in terms of their official capacity and (in some instances) in their personal capacity. It also includes provisions relating to the declaration and registration of interests. The Framework has remained largely unchanged, though there have been a number of small amendments to improve the operation of the Framework over the last twenty years.