Before starting pest control operations, what verification must an applicator have?

An applicator is required to have proof of obtaining operator identification before commencing pest control operations. This identification serves multiple purposes: it verifies that the applicator has fulfilled necessary training and licensing requirements as mandated by California's Department of Pesticide Regulation. Operator identification ensures that the applicator is knowledgeable about safety protocols, pesticide handling, and applicable regulations, contributing to safer pest control practices and protecting public health and the environment.

The other options, while related to pest control, do not serve as the primary verification required before operations begin. For instance, proof of pesticide purchases and historical pesticide use in the area may be relevant for other regulatory aspects but do not ensure the applicator's qualifications to perform the work. Authorization from the local water board could be necessary in specific circumstances but is not a general requirement for all pest control operations. Thus, the fundamental verification needed for an applicator is the proof of obtaining operator identification.