718                             LAWS OF MARYLAND                       CH. 447

WHICH THE MUNICIPALITY LIES. SUCH PORTION SHALL
BE DETERMINED (1) BY APPLYING TO ONE-HALF OF THE
COUNTY SHARE OF HIGHWAY USER REVENUES PROVIDED
UNDER THIS SECTION THE RATIO WHICH THE TOTAL
MILEAGE OF COUNTY ROADS IN THE MUNICIPALITY
BEARS TO THE TOTAL MILEAGE OF COUNTY ROADS IN
SUCH COUNTY AND THEN ALLOCATING THE RESULTING
PORTION TO THE MUNICIPALITY AND (2) BY INITIALLY
APPLYING TO ONE-HALF OF THE COUNTY SHARE OF
HIGHWAY USER REVENUES PROVIDED UNDER THIS SEC-
TION THE RATIO WHICH THE MOTOR VEHICLE REGISTRA-
TIONS WITHIN THE MUNICIPALITY BEARS TO THE TOTAL
NUMBER OF MOTOR VEHICLE REGISTRATIONS WITHIN
SUCH COUNTY, AND THEN ALLOCATING ONE-HALF OF
THE RESULTING PORTION TO THE MUNICIPALITY.

THE PORTION SO ALLOCATED SHALL BE THE MUNICI-
PALITY'S SHARE FOR THE PURPOSE OF THIS SECTION. IN
THE DISTRIBUTION OF THE SHARES UNDER THE MILE-
AGE FORMULA PURSUANT TO THIS SUBDIVISION, THE
SPECIAL IMPROVEMENT DISTRICTS IN PRINCE GEORGE'S
COUNTY IN EXISTENCE ON JANUARY, 1953, SHALL BE
TREATED AS MUNICIPALITIES, BUT THE PAYMENTS MADE
HEREUNDER SHALL BE RETAINED BY THE COUNTY COM-
MISSIONERS OF SAID COUNTY AS CREDITS TO SAID DIS-
TRICTS, AND SHALL BE APPLIED TOWARD THE COST OF
MAINTENANCE OF SUCH STREETS AND ROADS IN THE
SAID DISTRICTS SO LONG AS IT HAS AN INDEBTEDNESS.

(c) How mileage proportion computed.—The mileage proportions
required by subsection (a) and, when applicable by subsection (b)
of this section shall be computed by the State Roads Commission
as of June 30, 1947, for the fiscal year beginning July 1, 1947,
and recomputed as of December 1, 1947, for the fiscal year be-
ginning July 1, 1948, and as of December 1 of each year thereafter
for each next succeeding fiscal year. To assist the Commission in
making such computations, the county commissioners of the respec-
tive counties and the appropriate officials of such municipalities as
may have requested a share under said subsection (b), shall not later
than December 31, 1948 and not later than each December 31 there-
after, make a report to the Commission, in the form required by it,
showing the mileage added to or removed from the county roads
system within such county or municipality during the twelve months
period ending on the preceding December 1.

(c-1) Computation of registration ratios.—The motor vehicle
registration ratios required by subsections (a) and (b) of this section
shall be determined by the State Roads Commission for each license
year beginning with the license year immediately preceding the
effective date of this act in the following manner:

(1)   The total number of motor vehicle registration licenses issued
by the Department of Motor Vehicles (exclusive of all dealer licenses,
temporary 30-day tags, duplicate tags, and amateur radio tags) shall
be determined for each license year and for each county and Balti-
more City according to the addresses of the owners of such vehicles.

(2)  The ratio of motor vehicle registration licenses shall be deter-
mined for each county and shall be the ratio that the total number of