StacksVerified U.S. regulatory reference

40 CFR §792.47

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)As necessary to prevent contamination or mixups, there shall be separate areas for:
    1. (1)Receipt and storage of the test, control, and reference substances.
    2. (2)Mixing of the test, control, and reference substances with a carrier, e.g., feed.
    3. (3)Storage of the test, control, and reference substance mixtures.
  2. (b)Storage areas for test, control, and/or reference substance and for test, control, and/or reference mixtures shall be separate from areas housing the test systems and shall be adequate to preserve the identity, strength, purity, and stability of the substances and mixtures.