Joints　in　buried　municipal　pipes　are　arguably　one　of　the　most　critical　components　of　the　overall　system,　the　weak　link　that　determines　the　integrity　of　water　and　wastewater　systems　against　leaks　and　inflow/infiltration　(I/I).　Elastomeric　or　rubber　gasketed　＇push-on＇　or　＇bell-and-spigot＇　joints　are　one　of　the　most　common　ways　by　which　pipe　sections　are　joined.　The　American　Water　Works　Association＇s　(AWWA＇s)　Manual　of　Water　Supply　Practice　M75　Elastomers　for　Waterworks:　Pipes,　Valves,　and　Fittings　is　the　first　manual　of　its　kind　and　focuses　exclusively　on　the　elastomeric　gaskets　that　seal　the　various　types　of　joints.　While　pipe　joints　are　discussed　in　AWWA　M75,　an　understanding　of　the　unique　joint　types　of　each　pipe　material　is　not　covered　in　depth.　This　paper　focuses　on　the　state-of-the-art　of　joints　found　in　two　of　the　most　widely　specified　pipe　materials　in　water　and　wastewater　systems:　polyvinyl　chloride　(PVC)　and　ductile　iron　pipe.　Discussions　will　also　include　joints　of　other　pipe　materials　including　thermoplastics　such　as　corrugated　HDPE　and　thermosets　such　as　fiberglass　pipe;　vitrified　clay　pipe　(VCP);　spiral　welded　steel　pipe;　and　both　pressure　and　gravity　concrete　cylinder　and　non-cylinder　pipes.　Properties　of　elastomers　for　each　joint　type　as　outlined　in　pertinent　standards　will　also　be　discussed　and　summarized.　©　ASCE.