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We update the upper bound on the lightest CP even Higgs mass in the NMSSM,which is given as a function of tan(beta) and lambda. We include the availableone and two loop corrections to the NMSSM Higgs masses, and constraints fromthe absence of Landau singularities below the GUT scale as well as from thestability of the NMSSM Higgs potential. For m_top varying between 171.4 and 178GeV, squark masses of 1 TeV and maximal mixing the upper bound is assumed neartan(beta) ~ 2 and varies between 139.9 and 141.4 GeV.Comment: 13 pages, 2 figures, improved figures with a numerical bug corrected,  additional discussions of the large tan(beta) regime and the dependence of  the upper bound on lambd

THE UPPER BOUND ON THE LIGHTEST HIGGS MASS IN THE NMSSM REVISITED