Cellulose nitrate (CA-80-15) films were exposed to UV and neutron irradiations. An increase of the electrical conductivity was observed. The values of the activation energy diminish with irradiation from 0.42 to 0.15 eV for UV and to 0.31 eV for neutron irradiation. A sharp increase in the current was observed after exposing CA-80-15 samples to fission neutron fluences of 1*10(7) n/cm(2). The electrical conduction in cellulose nitrate is governed by the Shottky mechanism. The value of the electron affinity of the polymer used is 4.46 eV. This value is increased after both types of irradiation. The dielectric permittivity (epsilon’) of the above samples together with the dielectric loss factor (epsilon") were measured over a range of temperatures (293-403 K) at fixed frequencies (1*10(3), 1*10(4), and 1*10(5) Hz). Three neutron exposures (phi = 1*10(5), 1*10(6), and 1*10(7) n/cm(2)) were used. The obtained results made it possible to determine a complete set of conduction parameters including dielectric susceptibility chi, ac conductivity sigma(ac), and temperature coefficient of permittivity TCepsilon’.