Hi Tim, In 1979, the construction of a single family home in Oregon would have been covered by the UBC. (We didn't start using CABO till 1986, when we adopted the 1983 edition.) The 1976 UBC doesn't say squat about decks. (At least as far as I can see.) If I were in your place, I'd apply the latest requirements. Jim Katen Jim, Thanks for your reply. I talked to a state code guy in Salem, who said pretty much the same thing, with the exception of the guards having been covered in the UBC at that time. I've advised the owner of what I thought the best thing (tearoff) and he's going to bolt the ledger along with replacing the floorboards and anything rotten. This is in Bend, where, as you know, things are significantly drier than the west side, and is probably the only reason it has lasted this long. Best regards!