(1) If:
(a) a local access line is part of the infrastructure of a telecommunications network operated by a carrier; and
(b) the network is marketed by the carrier exclusively as a business network; and
(c) the line is used, or proposed to be used, to supply a superfast carriage service wholly or principally to residential customers, or prospective residential customers, in Australia; and
(d) that use or proposed use, when considered in relation to the use or proposed use of all of the local access lines that are part of the infrastructure of the network, is minor; and
(e) the other conditions (if any) determined under subsection (2) have been satisfied;
the line is exempt from section 142C.
(2) The Minister may, by legislative instrument, determine one or more conditions for the purposes of paragraph (1)(e).