  In layered samples which exhibit a bulk quantum Hall effect (QHE), a
two-dimensional (2d) surface ``sheath" of gapless excitations is expected.
These excitations comprise a novel 2d chiral quantum liquid which should
dominate the low temperature transport along the field (z-axis). For the
integer QHE, we show that localization effects are completely absent in the
``sheath", giving a metallic z-axis conductivity. For fractional filling $\nu
=1/3$, the ``sheath" is a 2d non-Fermi liquid, with incoherent z-axis transport
and $\sigma_{zz} \sim T^3$. Experimental implications for the Bechgaard salts
are discussed.
