318 LAWS OF MARYLAND.

SEC. 40. All contracts for work to be done under the pro-
visions of this subtitle shall be subject to the approval of
State Roads Commission.

SEC. 41. In order that the State may be assured of the
proper execution and performance of such contract made under
the provisions of this subtitle, it shall be the duty of the State
Roads Commission to maintain immediate supervision in such
manner as it shall deem proper of such execution and perform-
ance of each of said contracts; the cost of such supervision
shall be paid to said State Roads Commission by the Comp-
troller of the State of Maryland out of the appropriation
apportioned to the county and applicable to the particular
road or extension being constructed as provided for by this
subtitle.

SEC. 42. AS the work under any such approved contract
progresses, as provided in said plans and specifications, and
at such proper stages in the performance of such contract or
work as may be designated by the State Roads Commission,
it shall be the duty of the State Roads Commission to certify
the fact of such partial or total completion to the Board of
County Commissioners of each county, respectively, together
with an itemized statement of the cost of the work performed
under said contract, including therein and allowing for the
amount of the expense incurred by the Board of County Com-
missioners for surveys, plans, specifications, printing and ad-
vertising, and stating the amount due, respectively, from the
State of Maryland on the one hand and the County Commis-
sioners of any county on the other hand, and which said
amount due from each shall be one-half of the cost of the work
under the contract, and of all other proper expenditures, and
thereupon, and within ten days after receiving such certificate
from the State Roads Commission, the Board of County Com-
missioners in any county shall inform the State Roads Com-
mission, in writing, of any objections or exceptions to the
accuracy of the account, and of the amount found to be due
from such Board of County Commissioners, and such objections
and exceptions to said account shall thereupon be promptly
adjusted; provided that during the ten days allowed to any
county for such exceptions it shall not be necessary for the
Comptroller of the State to make any payment upon such
certificate, nor shall he make any such payment until the State
Roads Commission shall have acted upon any exception or
objection which shall be made in behalf of any county; pro-
vided, further, that the Board of County Commissioners of any
county may waive, in writing, the right to except and object;
and the proportion of the amount due from any county shall
be promptly paid to the contractor or other persons to whom