This paper describes a tentative static version of the waste sector module to the GreenREFORM model. We expect the main structure described below to carry through to the ﬁnal version of the module, while the level of detail increases. The ﬁnal waste module of the GreenREFORM model will diﬀer from the present model in at least three important aspects. First, the model presented below is static, and thus, describes the waste sector in a particular year. Capital is fully adjustable within this period. The ﬁnal GreenREFORM model will be dynamic, and capital will adjust endogenously over time. Second, the ﬁnal GreenREFORM model will be able to project economy-wide waste generation over the coming decades. Thus, the ﬁnal GreenREFORM model will feature endogenous waste generation processes. Meanwhile, the present model takes the waste generated by the economy as given.