Main Answer
T.D. 9479 refers to a specific Treasury Determination letter, which is a legal document issued by the United States Department of the Treasury.T.D. 9479 is a Treasury Determination letter, which is true.
Explanation
T.D. 9479 refers to a specific Treasury Determination letter, which is a legal document issued by the United States Department of the Treasury. This document provides guidance and interpretation of various tax laws and regulations, and it has the force of law once it is published in the Federal Register.
In this case, T.D. 9479 is a specific Treasury Determination letter that has been issued by the Department of the Treasury. Its content and specific details are not provided in the given question, but it can be assumed that this letter provides guidance or interpretation of certain tax laws or regulations.
In summary, T.D. 9479 is a Treasury Determination letter, which is a legal document issued by the United States Department of the Treasury that provides guidance and interpretation of various tax laws and regulations.