The goal of The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is to prevent nuclear weapons proliferation, promote peaceful nuclear energy cooperation, and pursue global disarmament. Signatory countries meet every five years for the NPT Review Conference to assess the implementation of the treaty and strengthen its measures. The Preparatory Committees of the NPT are held three years prior to the Review Conference so signatories can discuss relevant topics. Studies on the NPTs effectiveness focus on non-proliferation compliance and overlook cooperation for the peaceful uses of nuclear energy. In this study I map how the distribution of topics discussed in the Preparatory Committees change over time, how levels of state participation change over time, and if change in state participation in the Preparatory Committee correlates to increased transfers of nuclear reactor technologies. I employ a three-part approach in this study. First, I use topic modeling for categorizing the Preparatory Committee documents in seven categories. I assign the following labels to the categories by reading the most relevant documents in each one: Safeguards and Verifications, Non-Proliferation Policy and Disarmament, Conflict Resolution, Peaceful Nuclear Energy Cooperation, Implementation Assessments, New Initiative Proposals, and Logistics. Second, I generate “relevancy scores” between the names of the countries and the Preparatory Committee documents by using an embeddings model to quantify country’s participation. I then compare participation levels to nuclear technology transfers. Collectively, this research has shown that discourse on peaceful nuclear energy cooperation in the NPT forums often centers around the advancement of safeguards against proliferation. I also find that changes in participation do not correlate with changes in numbers of nuclear technology transfers. Thus, the NPT forums are platforms for dialogue on strengthening security against nuclear threats unrelated to tangible growth of peaceful nuclear technology usage.