Does a residential gas meter have a built in pressure regulator?
after your shut off valve there is a regulator and then your meter. the pressure going up to your house is roughly 60 psi and inside your house it is roughly 2 psi in the link it will look like something on the top left of the picture http://www.flickr.com/photos/lakeviewed/… edit: scott kel you are wrong about the water column pressure, here is some info I found Natural gas piping systems in multifamily buildings typically operate at standard delivery pressure. Standard delivery pressure at Southern California Gas Company is 8 inches water column (WC) or 1/4 pound per square inch gauge (PSIG).
