CORPORATIONS. 815

any such rehearing, abrogating, changing or modifying the original order
shall have the same force and effect as an original order.

Every order of the commission shall be served upon every person or cor-
poration to be affected thereby, either by personal delivery of a certified
copy thereof, or by mailing a certified copy thereof, in a sealed package,
with postage prepaid, to the person to be affected thereby; or, in the case
of a corporation, to any officer or agent thereof upon whom summons may
be served under the laws of this State. It shall be the duty of every person
and corporation to notify the commission forthwith in writing of the receipt
of the certified copy of every order so served, and in the case of a corpora-
tion such notification must be signed and acknowledged by a person or
officer duly authorized by the corporation to admit such service. Within a
time specified in the order of the commission every person and corporation
upon whom it is served must, if so required in the order, notify the com-
mission in like manner whether the terms of the order are accepted and
will be obeyed.

Every order of the commission shall take effect at a time therein specified
and shall continue in force for a period therein designated unless earlier
modified or abrogated by the commission, or unless such order be unauthor-
ized by this sub-title, or be in violation of a provision of the constitution
of the State or of the United States.

Any company, corporation, association, person or partnership subject
to any of the provisions of this sub-title, or other person or party in interest,
shall have the right to proceed in the courts to vacate, set aside or have
modified any order of said commission on the grounds that such order is
unreasonable or unlawful, as hereinafter more particularly set forth.

Failure of defendants to avail themselves of this section pointed out in holding
that so far as could be judged from the conduct of defendants, they acquiesced in
the order of commission. Gregg v. Public Service Commission, 121 Md. 1.

This section referred to in connection with the power of the commission under
sec. 377—see note thereto. N. C. Rwy. Co. v. Pub Serv. Com., 124 Md. 147.
See notes to secs. 346 and 379.

An. Code, sec. 424. 1910, ch. 180, sec. 12 (p. 354).

360. This sub-title shall apply to the transportation of passengers,
freight or property from one point to another within the State of Maryland,
and to any common carrier performing such service; and this sub-title shall
be so applicable and be so construed as to be free from conflict with those
provisions of the constitution of the United States and the laws in pur-
suance thereof relating to interstate commerce.
See sec. 416.

1920, ch. 677.

361. This sub-title shall apply to taxicabs or other motor vehicles used
in the public transportation of passengers within the State of Maryland,
and said taxicabs and motor vehicles are hereby classified as common
carriers.

This section referred to in construing art. 56, sec. 247—see notes thereto. This
section was passed a few months after the decision in Towers v. Wildason, 135 Md.
677. Goldsworthy v. Public Service Com., 141 Md. 682.