This is the World English Bible Catholic Edition. It uses "LORD" or "GOD" for God's Proper Name in the Old Testament and U. S. A. spelling. It uses the Traditional Catholic book set and book order. Other variants are available:
World English Bible (Classic, original World English Bible than uses "Yahweh" for God's Name in the Old Testament and U. S. A. spelling.)
World English Bible Update (U. S. A. spelling)World English Bible without the Deuterocanon/Apocrypha (a subset of the World English Bible Update with the 66 books of the Old and New Testaments)
World English Bible British/International spelling edition without the Deuterocanon/Apocrypha (a subset of the World English Bible British Edition with the 66 books of the Old and New Testaments)
World English Bible Catholic (a subset of the World English Bible Update with the traditional Catholic book set and book order)
Note: in footnotes in the New Testament, "NU" refers to Nestle/Aland UBS critical New Testament textual variants, and "TR" refers to Textus Receptus textual variants.