21 C.F.R. § 189.240 Lead solders.
Title 21 - Food and Drugs
(a) Lead solders are alloys of metals that include lead and are used in the construction of metal food cans. (b) Food packaged in any container that makes use of lead in can solder is deemed to be adulterated in violation of the Federal Food, Drug, and Cosmetic Act, based upon an order published in the [60 FR 33109, June 27, 1995]
Title 21: Food and Drugs
PART 189—SUBSTANCES PROHIBITED FROM USE IN HUMAN FOOD
Subpart D—Substances Prohibited From Indirect Addition to Human Food Through Food-Contact Surfaces
§ 189.240 Lead solders.