The Pest Control Operator Pre-License Training Curriculum for Structural PCO includes: General Entomology and Structural Pests. This curriculum is a supplement to the WSU Publication EM019 Pest Management Study Manual for Pest Control Operators. The information in the study manual along with this internet curriculum along with the study manual Washington Pesticide Laws and Safety (EM012) are the basis for the Pest Control Operator Structural Exam, administered by the Washington State Department of Agriculture.