170                                 LAWS OF MARYLAND                          [CH. 126

replacement, depreciation and any extensions of such project or
projects, and (b) the principal of the bonds issued to provide the
funds for the acquisition, construction, improvement, equipping,
maintaining, operating, or furnishing such project or projects and
the interest thereon as the same shall become due and payable, and
reserves for such purposes.

Such rates, tolls, rentals or charges shall not be subject to super-
vision or regulation by any State, county or municipal commission,
board, bureau or agency.

The rates, tolls, rentals, or charges, and all other revenues derived
by the Authority in the operation of any project or projects, except
such part thereof as may be required to pay the cost of maintaining,
repairing and operating any project or projects or to provide such
reserves as may be called for in the resolution authorizing the issuance
of the revenue bonds or the trust indenture, shall be set aside at such
regular intervals as may be provided in such resolution or such trust
indenture, in a sinking fund which is hereby pledged to, and charged
with the payment of, (1) the interest upon the bonds issued to pro-
vide funds for the acquisition, construction, improvement, equipping,
furnishing, maintaining or operating such project or projects, as
such interest shall fall due, (2) the principal of such bonds as the
same shall fall due, (S) the necessary fiscal agency charges for pay-
ing such principal and interest, and (4) any premium upon such
bonds retired by call or purchase as herein provided. The use and
disposition of such sinking fund shall be subject to such regulations
as may be provided in the resolution authorizing the issuance of such
bonds, or in the trust indenture, but, except as may otherwise be
provided in such resolution or trust indenture, such sinking fund
shall be a fund for the benefit of all of such bonds without distinc-
tion or priority of one over another. Subject to the provisions of the
resolution authorizing the issuance of such bonds or of the trust
indenture, any moneys in such sinking fund in excess of an amount
equal to two (2) year's interest on all such bonds then outstanding
may be applied to the purchase or redemption of such bonds. All
bonds so purchased or redeemed shall forthwith be cancelled.

436. (Rights and Remedies of Bondholders.) The rights and the
remedies, herein conferred upon or granted to the bondholders, shall
be in addition to and not in limitation of any rights and remedies
lawfully granted to such bondholders by the resolution or resolutions
providing for the issuance of bonds, or by any deed of trust, indenture,
or other agreement under which the same may be issued. In the
event that the Authority shall default in the payment of principal
of or interest on any of the bonds after said principal or interest
shall become due, whether at maturity or upon call for redemption,
and such default shall continue for a period of thirty (30) days, or
An the event that the Authority shall fail or refuse to comply with
the provisions of this Act, or shall default in any agreement made
with the holders of the bonds, the holders of twenty-five per centum
(25%) in the aggregate principal amount of the bonds then out-
standing, by instrument or instruments filed in the office of the
Clerk of the Circuit Court for Baltimore County, and proved or
acknowledged in the same manner as a deed to be recorded, may
(except as such right may be limited under the provisions of any
deed of trust, indenture or other agreement as aforesaid) appoint a