Ychwanegwyd is-gymalau newydd at Gymal 20 i roi'r pŵer i Weinidogion Cymru sicrhau y gellir gwneud darpariaeth briodol mewn perthynas â buddion anafiadau ac iawndal sy'n daladwy o dan gynllun anafiadau ac iawndal perthnasol i aelod sydd â gwasanaeth adferadwy, neu mewn perthynas ag ef.  Yn benodol, bydd yn galluogi gwneud newidiadau priodol i Gynllun Iawndal Diffoddwyr Tân Cymru 2007.  Nid cynllun pensiwn yw hwn – mae'n rhoi iawndal i ddiffoddwyr tân sy'n cael eu hanafu neu eu lladd ar ddyletswydd – ond mae'r hawl i gael iawndal oddi tano yn cael ei yrru'n rhannol gan hawliau pensiwn.
New sub-clauses have been added to Clause 20 to provide Welsh Ministers with the power to ensure appropriate provision can be made in respect of injury and compensation benefits payable under a relevant injury and compensation scheme to, or in respect of, a member who has remediable service.  In particular, it will enable appropriate changes to be made to the 2007 Firefighters’ Compensation Scheme for Wales.  This is not a pension scheme – it provides compensation to firefighters who are injured or killed on duty – but entitlement to compensation under it is partly driven by pension entitlements.