  The upper bound on the mass of the light CP-even Higgs boson of the minimal
supersymmetric model (MSSM) depends on the supersymmetric particle spectrum via
radiative loop effects. At present, complete one-loop results and partial
two-loop results are known. Some simple analytic approximations have been
obtained which are quite accurate over a large portion of the MSSM parameter
space. Based on these results, I examine how accurately one can predict the
upper bound on the mass of the lightest MSSM Higgs boson.
