Georgia, 2006 IPC - does this old work look up to code?

See photo. Note, the WC vents through the 2" VTR noted in the photo.

you have a flat vent on the shower that is a no go and the drop down piping on the shower creates an s trap situation which is also a no go.

Besides the problem NHmaster stated. There are to many fittings. Some one should take an ax to it. I think it's still growing.
John

Due to the incorrect venting at the shower the toilet is not vented now.

Thanks for the confirmation. I truly believe that the plumbing work o. This house is bad throughout.

Dwv

There is NO "S" trap. the vent is off the upper level after the trap so it is proper, except for that portion of the shower vent which is horizontal, unless the sink connects to it. There were probably ways to do it more directly without all those fittings, but that is a problem with the installer's experience. For example, the shower could have connected directly to the 3" in the same bay and would not have required the second hole in the joist, and the toilet pipe did not need that "dog leg" in it.