The "College English Curriculum Requirements," announced by the Chinese Ministry of Education in 2007, recommended the inclusion of formative assessment into the existing summative assessment framework of College English. This policy had the potential to fundamentally change the nature of assessment and its role in the teaching and learning of English in Chinese universities. In order to document and analyse these changes, case studies involving English language (EL) teachers and learners were undertaken in two Chinese universities: one a Key University in the national capital; the other a non-Key University in a western province. The case study design incorporated classroom observations and interviews with EL teachers and their students. The type and focus of feedback and the engagement of students in assessment were analysed in the two contexts. Fundamental to the analysis was the concept of enactment, with the focus of this study on the ways that policy ideas and principles were enacted in the practices of the Chinese university classroom. Understandings of formative assessment as applied in contexts other than the predominantly western, Anglophone contexts from where many of its principles derive are offered.