This paper focuses on specific advances involving the use of geosynthetics in the different components of waste containment facilities. In particular, this paper addresses recent advances involving the use of geosynthetics in bottom liner systems (e.g. geosynthetic clay liners, service life of eomembranes), cover systems (e.g. reinforced cover systems, exposed geomembrane overs), side slope lining systems (e.g., interface stability, teep sided walls), liquid collection systems (e.g., determination of the maximum liquid thickness, design of double slope layers), cut-off wall systems (e.g. interlocks and geomembrane performance) and remediation work (e.g. prefabricated vertical drains for methane extraction and soil flushing). Recent case histories are also provided to document the implementation of these advances in engineering practice.