Sorry, totally missed the part about providing a code section, limited time anyway.I don't usually play these games so I won't look too stupid, but I'll name a few I saw in the first few seconds:
Missing gas sediment trap, condensate line support and trap (per MFR??), unpainted gas pipe, don't see a disco, gas pipe support, gas pipe in contact with the curb
I was looking at a solar picture when I noticed this on a neighboring roof. This being an interactive forum and all, how about naming the violations and if you are so inclined, provide a code section.