The purpose of the CFR is to present the official and complete text of agency regulations in one organized publication and to provide a comprehensive and convenient reference for all those who may need to know the text of general and permanent Federal regulations.

The Code of Federal Regulations is a codification of the general and permanent rules published in the Federal Register by the Executive departments and agencies of the United States Federal Government. This print ISBN is the official U.S. Federal Government edition. Title 21 CFR, Parts 800-1299, includes rules, regulations, procedures and administrative procedures associated with the Food and Drug Administration and Department of Health and Human Services (medical devices), medical device quality system regulation, postmarket surveillance, unique device identification, medical device classification procedures, mammography, the Mammography Quality Standards Act, radiological health, tobacco products, the Federal Import Milk Act, the Federal Caustic Poison Act, control of communicable diseases, human tissue intended for transplantation, and more... Related products: The Healthy Woman: A Complete Guide for All Ages can be found here: https://bookstore.gpo.gov/products/healthy-woman-complete-guide-all-ages Medical Consequences of Radiological and Nuclear Weapons -- Hardcover format --NOTE: Backlist title- no further discount- significantly reduced list price while print copies last-- can be found here: https://bookstore.gpo.gov/products/medical-consequences-radiological-and-nuclear-weapons Pediatric Surgery and Medicine for Hostile Environments- Hardcover format-- is available here: https://bookstore.gpo.gov/products/pediatric-surgery-and-medicine-hostile-environments-2e How Tobacco Smoke Causes Diseases: The Biology and Behavioral Basis for Smoking-Attributable Disease, A Report of the Surgeon General -- NOTE: Backlist title--no further discount--significantly reduced list price while print copies last -- can be found here: https://bookstore.gpo.gov/products/how-tobacco-smoke-causes-disease-biology-and-behavioral-basis-smoking-attributable-disease Preventing Tobacco Use Among Youth and Young Adults: A Report of the Surgeon General (Three Volume Set) --NOTE: Backlist title --no further discount--significantly reduced list price while print copies last -- can be found here: https://bookstore.gpo.gov/products/preventing-tobacco-use-among-youth-and-young-adults-report-surgeon-general-three-volume-set

Special edition of the Federal register. Subject/agency index for rules codified in the Code of Federal Regulations, revised as of Jan. 1 ...

DDT is a pesticide that was once widely used to control insects. Both DDD and DDE are breakdown products of DDT. This profile includes: (1) The examination, summary, and interpretation of available toxicologic info. and epidemiologic evaluations on DDT/DDD/DDE to ascertain the levels of significant human exposure for the substance and the associated chronic health effects; (2) A determination of whether adequate info. on the health effects of DDT/DDD/DDE is available to determine levels of exposure that present a significant risk to human health of chronic health effects; and (3) Identification of toxicologic testing needed to identify the types or levels of exposure that may present significant risk of adverse health effects in humans. Illus.