The WJEC will today issue the regraded results of English GCSEs.
Welsh Education Minister Leighton Andrews directed the board to review this year's results following the row about students being awarded lower grades than expected last month.
The exam board is obliged to publish the results by 5pm.
The re-grading direction applies specifically to those candidates on the C/D grade boundary. However, there will be some consequential impact on other grades, which are determined by an arithmetic relationship to the C/D boundary.
Emails released by Welsh Government show that the exam board warned that a regrade of GCSE English papers would affect integrity
Education Minister Leighton Andrews has told AMs he stands by his decision to order a regrade for this year's English Language GCSEs
Following the decision by Westminister to replace the GCSEs in England, the Welsh Government says it won't rush into a decision here.