Chapter 21. Tobacco Statistics 7 U.S. Code §501. Collection and publication; facts required; deteriorated tobacco 7 U.S. Code §502. Standards for classification; returns and blanks 7 U.S. Code §503. Reports; necessity; by whom made; penalties 7 U.S. Code §504. "Person" defined 7 U.S. Code §505. Access to internal-revenue records 7 U.S. Code §506. Returns under oath; administration 7 U.S. Code §507. Limitation on use of statistical information 7 U.S. Code §508. Separability