farcio arholiadau a chymedroli asesiadau dan reolaeth ar gyfer unedau mis Ionawr, ond ni ddylent ddyfarnu graddau uned ar gyfer unedau mis Ionawr. Caiff holl farciau mis Ionawr eu hystyried mewn cyfarfodydd dyfarnu yn yr haf, ynghyd â marciau asesiadau dan reolaeth ac arholiadau’r haf;gosod asesiadau ar wahân ar gyfer dysgwyr yng Nghymru sy'n gwneud unedau TGAU Saesneg Iaith ym mis Mehefin 2013, lle disgwylir mwy na 5000 o ymgeiswyr;cynnal cyfarfodydd dyfarnu ar wahân ar gyfer y dysgwyr hynny yng Nghymru (yn hytrach na dysgwyr mewn unrhyw wlad arall) a gosod terfynau graddau sy'n arwain at ganlyniadau y gellir eu cymharu â 2011, lle disgwylir mwy na 5000 o ymgeiswyr.
mark examinations and moderate controlled assessments for the January units, but must not award unit grades for the January units.  All January marks will now be considered at awarding meetings in the summer, together with marks from the summer examinations and controlled assessments;set separate assessments for learners in Wales taking GCSE English Language units in June 2013, where they have more than 5000 expected entries; andhold separate award meetings for those learners in Wales (as opposed to learners in any other country) and set grade boundaries which lead to comparable outcomes with 2011, where they have more than 5000 expected entries.