In looking at some very old city (late 50's - early 60's) plans and as-builts; it appears that my sewer line is Asbestos Cement (AC). In researching AC I find that it was a pretty common product back then, but is nearing the end of its design life. I may be doing a complete demo and rebuild on the property and wanted to know what are some options to tying in to the old line. My new build fixture units will be within the 4" size and I will use PVC or ABS for the new sewer. Is it possible to connect PVC/ABS to AC? Is that just a no-hub connection? Should I be concerned with having to replace the whole thing to the street? Where does the city's obligation end and mine start? Anything else I should know about AC? Thanks to anyone with some knowledge of this product. Expect this is a infrastructure concern that will be popping up a bunch if end of life service for AC is now upon us.