[en] During the past year, progress was achieved on several projects under this contract. Research was carried out in the general areas of collision dynamics and chemical kinetics. In summary, research on the following topics was pursued. (I) a new multiple (mass ratio) scale analysis of atom-diatom collisions; (II) exact scattering solutions in an Energy Sudden (ES) representation; (III) rotational relaxation rates in HF and Ar-HF from the direct inversion of pressure broadened linewidths; (IV) chemical sensitivity analysis theory with applications to molecular dynamics and kinetics; (V) derived sensitivity densities in chemical kinetics: a new computational approach with applications; (VI) feature sensitivity analysis in chemical kinetics; and (VII) application of moments to the general linear multicomponent reaction-diffusion equation. This work is briefly reviewed