Under what condition may certain pesticides be exempt from permit requirements in California?

Certain pesticides may be exempt from permit requirements in California when they require no further restrictions beyond those imposed by federal regulations and the label. This exemption is based on the premise that if a pesticide is already regulated at the federal level and its use is clearly defined on its label, then it can be assumed that the risks associated with its application are adequately managed through those existing regulations.

This condition means that the use of such pesticides does not elevate any risks that would necessitate additional state-level regulation, thus streamlining the process and allowing for easier access to products that are deemed safe and effective under the established federal guidelines. It reflects a compliance-focused approach, recognizing that states may rely on federal standards when they adequately address safety and environmental concerns.

The other conditions provided do not align with the criteria for exemption as they either imply a lack of safety (suggesting hazards or overregulation) or involve scenarios that are not permissible under California's pesticide regulatory framework.