| ABS = Acrylonitrile-butadiene-styrene | P=Plastic(conduit or pipe) |
| ACP=Asbestos cement pipe | PB=Pull box |
| CAP=Corrugated aluminum pipe | PC=Plastic conduit |
| CIP=Cast iron pipe | PE=Polyethylene |
| CMC=Cement mortar coated | PL=Property line |
| CML=Cement mortar lined | PVC=Polyvinyl chloride |
| CSP=Corrugated steel pipe | R=Radius |
| CU=Cooper | RCB=Reinforced concrete box |
| DIP=Ductile iron pipe | RCP=Reinforced concrete pipe |
| DU=Duct | SCCP=Steel cylinder concrete pipe |
| ELC=Electrolyte lighting conduit | STL=Steel |
| FC=Fiber conduit | STRUC=Structure |
| GIP=Galvanized iron pipe | T=Transmission facility |
| GSP=Galvanized steel pipe | TR=Transite(asbestos cement pipe) |
| IP=Iron pipe | Trans=Transition |
| MCD=Multiple concrete duct | TSC=Traffic signal conduit |
| MCD=Multiple concrete duct | VCP=Vertrified clay pipe |
| MTD=Multiple tile duct |
