US lawMinnesotaRegulationsDEPARTMENT OF AGRICULTUREChapter 1512 — CHAPTER 1512, SOIL TESTING LABORATORIES; AGRICULTURAL CHEMICAL RESPONSE COMPENSATION1512.0045Minn. R. 1512.0045RECORDSLast amended: 1994Year: 2026Length: 21 wordsOfficial source Records of sample receipt, sample analysis, soil fertility recommendations, and internal quality assurance must be maintained for at least one year.PreviousMinn. R. 1512.0040NextMinn. R. 1512.0050