This session will discuss common deficiencies in rate models, specifically focusing on property/casualty (P/C) examples. It will also examine specific issues identified through the NAIC rate model review process, such as oversampling, transition methodologies, data recency, and unintuitive telematics coefficients. This session will not only explore common deficiencies in rate models and how to address them, but also it will serve as an opportunity for regulators to exchange ideas, voice their concerns, and ask questions.