This paper examines preservice teachers negotiating and making sense of a particular policy, the Massachusetts' Rethinking Equity and Teaching for English Language Learners (RETELL). It addresses the following questions: First, what do preservice teachers know about policy in general and the RETELL language policy in particular? Second, how do preservice teachers make sense of the implementation of the RETELL policy in the various settings of their professional training? Third, in what ways do preservice teachers' experiences with the policy influence their orientations toward teaching emergent bilingual students? This analysis demonstrates that preservice teachers have limited general knowledge of educational policy process, and limited specific knowledge around the RETELL language policy. Yet, they learn important lessons about how to "do" policy from their field supervisors and play an important role in policy implementation. The impact of the RETELL policy on preservice teachers' beliefs about teaching emergent bilingual students is mediated by the lack of policy information they receive and by their experiences in the field. This paper adds to the limited literature around preservice teachers involvement in policy and offers recommendations for highlighting the importance of policy education in teacher training.