Education Minister Leighton Andrews has issued a direction to the WJEC to re-grade this summer's English GCSE English language results for qualifications delivered in Wales.
Yesterday the Minister sought an undertaking that the WJEC would re-grade the qualification.
A spokesperson has told ITV Wales that no such undertaking has been received, resulting in the issue of a formal direction this afternoon.
The Minister for Education, Leighton Andrews, said:
Yesterday, I published a serious, thorough and detailed report from my regulatory officials which stated that this year's awards were unfair to candidates. It is not right that hundreds of our learners should have to live with the consequences of having been awarded what, in all likelihood, is the wrong GCSE grade.
We are fortunate in Wales that we have a regulatory system which allows swift resolution of injustice. We have acted to protect the interests of students in Wales by issuing the direction to the WJEC.
The Minister says that he has given the WJEC seven days to implement the required re-grading.
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.