(a)
A person may—
(1)
construct an extension to any of its railroad lines;
(2)
construct an additional railroad line;
(3)
provide transportation over, or by means of, an extended or additional railroad line; or
(4)
in the case of a person other than a rail carrier, acquire a railroad line or acquire or operate an extended or additional railroad line,
only if the Board issues a certificate authorizing such activity under subsection (c).