LICENSES. 355

ing 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 Commis-
sion may, after due hearing, upon not less than three days' notice in writ-
ing, to be sent by registered letter to the address given by the motor vehicle
owner when applying for his permit, revoke or suspend all permits issued
to such motor vehicle owner under the provisions of this sub-title, and
refuse thereafter to issue such permits to said motor vehicle owner. Upon
the suspension or revocation of a permit by the Public Service Commis-
sion, all certificates of registration issued to such motor vehicle owner by
the Commissioner of Motor Vehicles shall thereupon be likewise suspended
or revoked. The license, or registration fees, charged under this sub-title,
except in case of seasonal permits, as above provided, shall be on the basis
of the entire year, but may be issued on or after the first day of July, in
any year, for the remainder of the year expiring on the 31st day of Decem-
ber, in which event one-half of the yearly fee shall be paid. No portion
of the license or registration fee paid as aforesaid will be refunded for any
part of the year during which said license is not used, provided, however,
that reductions in said fee occasioned by change of route or schedule or
abandonment of route, shall be allowed as a credit upon all sums payable
by such motor vehicle owner, in the course of the current calendar year,
for excess mileage of any motor vehicle registered in the name of such
owner under the provisions of this sub-title.

Application for readjustment of fees should be made during license year: pro-
cedure for readjustment after license year, is through Governor or Treasury
Dept.: mandamus will not lie to recover excess paid into State Treasury. Suit
against state. Red Star Line v. Baughman. 153 Met. 610 (arose prior to Act 1927,
ch. 620).

See notes to sec. 251.

254.

See notes to see. 2. 53.

An. Code, 1924, sec. 255. 1912, sec. 192. 1916, ch. 610, sec. 4 1922, ch. 401, sec. 4.

1927, ch. 620, sec. 255.

255. It shall be the duty of the Public Service Commission of Mary-
land, upon the application of any motor vehicle owner for a permit to
operate any motor vehicle for the public transportation of passengers over
any specified route, to investigate the expediency of granting said permit;
the number of motor vehicles to be used, and the rate to be charged, and if,
in the judgment of the Public Service Commission, it is deemed best for
public welfare and convenience that said permit should be granted, said
Public Service Commission is hereby empowered and authorized to grant
such permit subject to such reasonable conditions and terms, and for such
duration of time, not exceeding the period of twenty years, as it may deem
advisable, provided, however, that permits to operate over the streets of
the City of Baltimore shall not be granted for periods in excess of one year.
But if said Public Service Commission deems the granting of such per-
mit prejudicial to the welfare and convenience of the public, then the said
Public Service Commission is hereby empowered and authorized to re-