1534 LAWS OF MARYLAND. [CH. 856

ment shall be filled and shall continue subject to the provi-
sions of the Merit System Law. The Commission shall
have the power to sell or exchange any vessel or other
property when in its discretion, such action is necessary
to improve service or facilities.

140-1. The Commission is hereby authorized to fix and
revise from time to time tolls for the use of said ferry to
be acquired by it, and to charge and collect the same. Such
tolls shall be so fixed and adjusted as to provide a fund
sufficient to pay the cost of maintaining, repairing and
operating the ferry project and to meet the principal and
interest requirements of the revenue bonds as the same
shall become due. Such tolls shall not be subject to super-
vision or regulation by any other State commission, board,,
bureau, officer or agency.

140-J. The tolls and all other revenues derived from
the ferry project, except such part thereof as may be re-
quired to pay the cost of maintaining, repairing and oper-
ating the ferry and to provide such reserves therefor, in-
cluding a reserve to meet extraordinary property loss or
damage, as may be provided for in the trust indenture,
shall be set aside at such regular intervals as may be pro-
vided in the trust indenture in a fund which is hereby
pledged to and charged with the payment of (1) the inter-
est upon such bonds as the same shall fall due, (2) the
principal of the bonds as the same shall fall due and (3)
the necessary charges of any fiscal agent, any transfer
agent and the trustee. The trust indenture may provide
that any monies set aside in said fund, in excess of an
amount equal to one year's interest on all bonds then out-
standing plus the principal amount of all bonds maturing
within the next succeeding twelve months' period, may be
applied to the purchase or redemption of bonds as here-
inbefore provided.

140K. To provide against any contingency under which
the tolls and revenues of the ferry might become insuffi-
cient for the debt service requirements of the revenue
bonds, the Commission shall at all times maintain, in the
hands of the trustee under the indenture securing such
bonds, a cash balance sufficient to pay all interest require-
ments and principal maturities falling due during the
succeeding twelve months' period. To that end there is
hereby laid an annual tax. Such annual tax shall consist
of such part of the share of the one-half cent gasoline tax
payable to the Commission under Section 3 of this Act
as shall be necessary to maintain the aforesaid cash bal-