, but do so subject to the rule, which is enforced by the
Interstate Commerce Commission, that such rates may not discriminate
against interstate commerce.[798]

ADEQUATE SERVICE REGULATIONS

In many other respects the power still remains with the States to
require by statute or administrative order a fair and adequate service
for their inhabitants from railway companies, including interstate
carriers operating within their borders, so long as the burdens thus
imposed upon interstate commerce are, in the judgment of the Court,
"reasonable." In an instructive brace of cases the Court was asked to
say whether a carrier, in the interest of providing proper local
facilities of commerce, could be required to stop its interstate trains.
In one case a State regulation requiring all regular passenger trains
operating wholly within the State to stop at all county seats was held
to have been validly applied to interstate connection trains;[799] while
in the other case a statute requiring _all_ passenger trains to stop at
county seats was held invalid, there being "other and ample
accommodation."[800] Comparing these and other like decisions, the Court
has stated "the applicable general doctrine" to be as follows: (1) It is
competent for a State to require adequate local facilities, even to the
stoppage of interstate trains or the rearrangement of their schedules.
(2) Such facilities existing--that is, the local conditions being
adequately met--the obligation of the railroad is performed, and the
stoppage of interstate trains becomes an improper and illegal
interference with interstate commerce. (3) And this, whether the
interference be directly by the legislature or by its command through
the orders of an administrative body. (4) The fact of local facilities
this court may determine, such fact being necessarily involved in the
determination of the Federal question whether an order concerning an
interstate train does or does not directly regulate interstate commerce,
by imposing an arbitrary requirement.[801] "There is, however," it later
added, "no inevitable test of the instances; the facts in each must be
considered."[802]

In the same way a State regulation requiring intersecting railways to
make track connections was held valid,[803] as was also a regulation
requiring equality of car service between shippers;[804] while a
regulation requiring the delivery of shipments on private sideways[805]
and one requiring cars for l