A CASSCF and CASPT2 ab initio study has been carried out for the lowest (2)A' potential energy surface (2 (2)A' PES) that correlates reactants and products of the N(D-2)+O-2-->O(P-3)+NO reaction. All the stationary points have been characterized and along with a grid of more than 600 ab initio points have been fitted to an analytical function. Afterwards, this analytical PES has been employed to study the kinetics [variational transition state theory (VTST) and quasiclassical trajectory (QCT) methods] and dynamics (QCT method) of the reaction. Concerning the rate constants, a good agreement with the experimental values corresponding to the global deactivation of N(D-2) has been obtained. This suggests that this reaction is responsible of most of the reactivity of the N(D-2)+O-2 system. NO vibrational distributions have also been calculated. Although there is not a good agreement between the theoretical and experimental values, preliminary results show that they can become quite close by taking into account the contribution of the 1 (2)A' PES.