Final answer:
The most authoritative sources for information on RUP records are the State Department of Agriculture and the pesticide label, overseen by the EPA's implementation of FIFRA and related USDA organic regulations.
Step-by-step explanation:
Information about the kinds of information that must be maintained in Records of Use Plans (RUP) records can be found in several sources, but the most authoritative would be the State Department of Agriculture and the pesticide label itself. Pesticide oversight, including RUP records, is governed by regulations that are administered by the Environmental Protection Agency (EPA) under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Furthermore, the USDA's National Organic Program has specific guidelines regarding the use of pesticides and fertilizers in organic farming, which may also relate to what is recorded in RUP documents depending on the context of their application.