1254 LAWS OF MARYLAND. [CH. 620

such routes and schedules, approved as aforesaid for the
public accommodation. In cases where certificates have been
issued to such motor vehicle owner for more than one route, all
motor vehicles having the same number of passenger seats, in-
cluding reserve or substitute vehicles, which have been regis-
tered for use upon either or any of said routes, may be used
interchangeably upon either or any of said routes. The oper-
ations, upon any route may be conducted with greater frequency
than prescribed by the approved schedule without obtaining
permission therefor from the Public Service Commission, pro-
vided, however, that the approved schedule shall be strictly
maintained and adhered to, until changed with the permission
of the Public Service Commission, and provided further, that
whenever the operations conducted are in excess of those pre-
scribed by the approved schedule, the motor vehicle owner shall
report to the Public Service Commission, on or before the fifth
business day of the succeeding month, the actual number of
miles traveled, and the license number of the motor vehicles
operated upon each route for the preceding calendar month, and
shall, at the same time send a duplicate of said report to the
Commissioner of Motor Vehicles and pay to the said Commis-
sioner the difference between the fee charged on the basis of the
approved schedule and the fee chargeable upon the basis of the
actual number of seat-miles traveled; and provided, further,
whenever, in the opinion of the Public Service Commission, it
will be prejudicial to the public welfare and convenience, to per-
mit operations to be conducted upon any route with greater fre-
quency than prescribed by the approved schedule, said Com-
mission may limit this privilege in whatever manner it may
deem proper or deny the said privilege altogether, either at the
time of the issuance of the permit or at any time thereafter.
Seasonal permits may be granted for a portion of the year,
if, in the judgment of the Public Service Commission, the
granting thereof is deemed essential to the public welfare
and convenience, and routes may be changed or abandoned,
whenever, in the opinion of the Public Service Commission,
the welfare and convenience of the public will not be preju-
diced thereby. In the event any such motor vehicle owner shall
fail to report excess mileage and other information, as above
provided, or shall change or abandon a route or reduce a
schedule, without first obtaining the permission of the Public
Service Commission, or shall operate with greater frequency
than prescribed by his approved schedule, where the privilege
so to do has been denied or limited, the Public Service Com-
mission may, after due hearing, upon not less than three days'
notice in writing, to be sent by registered letter to the address
given by the motor vehicle owner when applying for his per-