DescriptionEach change or altered segment is identified in the text by a gray shaded background. It is important to note that the reference on the left is from last year’s book. Given the reformatting of this year’s book and the movement of some material, that reference may be meaningless unless the reader has last year’s book. For the reader’s convenience, the reference on the right, which is for this book, includes both the rules reference and the page number.