StacksVerified U.S. regulatory reference

7 CFR §28.37

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Classification shall not proceed until the samples, after being delivered to the Program, shall have been exposed for such length of time as in the judgment of the Area Director or Quality Assurance Director shall be sufficient to put them in proper condition for the purpose.