API 650 11th Edition, Addendum 1

Can you believe it? It has been released! Addendum 1 to the 11th Edition of API-650 is now available! Now we can begin looking at what has changed. Since it has been indicated that there where a lot of editorial changes between the proof copy I had and the released copy, I will start over letting you know what changes have been made in the Addendum 1. We will also begin making revisions to our program to incorporate these changes into our ITSdesign program. The release date on the addendum is November. Therefore, the mandatory effective date will be May, 2009.