21 CFR Part 170 to 199 contains food additives, production, processing, and handling of food, indirect food additives, such as paper, cardboard, and hand sanitizers, dietary supplements, and more. Code of Federal Regulations Title 21, Volume 3, April 1, 2015 Containing parts Parts 170 to 199 Part 170; FOOD ADDITIVES Part 171; FOOD ADDITIVE PETITIONS Part 172; FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION Part 173; SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION Part 174; INDIRECT FOOD ADDITIVES: GENERAL Part 175; INDIRECT FOOD ADDITIVES: ADHESIVES AND COMPONENTS OF COATINGS Part 176; INDIRECT FOOD ADDITIVES: PAPER AND PAPERBOARD COMPONENTS Part 177; INDIRECT FOOD ADDITIVES: POLYMERS Part 178; INDIRECT FOOD ADDITIVES: ADJUVANTS, PRODUCTION AIDS, AND SANITIZERS Part 179; IRRADIATION IN THE PRODUCTION, PROCESSING AND HANDLING OF FOOD Part 180; FOOD ADDITIVES PERMITTED IN FOOD OR IN CONTACT WITH FOOD ON AN INTERIM BASIS PENDING ADDITIONAL STUDY Part 181; PRIOR-SANCTIONED FOOD INGREDIENTS Part 182; SUBSTANCES GENERALLY RECOGNIZED AS SAFE Part 184; DIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE Part 186; INDIRECT FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE Part 189; SUBSTANCES PROHIBITED FROM USE IN HUMAN FOOD Part 190; DIETARY SUPPLEMENTS Parts 191-199; Reserved