  We study semiclassical sequences of distributions $u_h$ associated to a
Lagrangian submanifold of phase space $\lag \subset T^*X$. If $u_h$ is a
semiclassical Lagrangian distribution, which concentrates at a maximal rate on
$\lag,$ then the asymptotics of $u_h$ are well-understood by work of Arnol'd,
provided $\lag$ projects to $X$ with a stable Lagrangian singularity. We
establish sup-norm estimates on $u_h$ under much more general hypotheses on the
rate at which it is concentrating on $\lag$ (again assuming a stable
projection). These estimates apply to sequences of eigenfunctions of integrable
and KAM Hamiltonians.
