Two simple methods for estimating LF and VLF reflection loss are devised, and the procedures for applying the methods are described. The first method involves estimating the actual height of reflection, fitting an exponential profile at this height, using the wave theory answer for the fitted exponential profile, and, if necessary, applying a correction for departure from the fitted exponential profile well below the level of reflection. The second method integrates the nondeviating region attenuation coefficient up to a level chosen, using wave theory, to give the right answer when the profile near the level of reflection is exponential.For practical evaluations of LF and VLF transmission loss in nuclear burst environments involving highly oblique reflections in the lower D region, the methods presented can be applied with adequate accuracy for transmission frequencies at least as low as 10 kHz.