21 CFR 70.20 - Packaging requirements for straight colors (other than hair dyes).
Straight colors shall be packaged in containers which prevent changes in composition. Packages shall be sealed so that they cannot be opened without breaking the seal. An unavoidable change in moisture content caused by the ordinary and customary exposure that occurs in good storage, packing, and distribution practice is not considered a change in composition. If the packaging material is a food additive it shall be authorized by an appropriate regulation in parts 170 through 189 of this chapter.
Title 21 published on 2015-12-03
The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 21 CFR Part 70 after this date.