(1) Subject to section 22, the Minister may, if he or she considers it necessary to control risks to the security of electronic communications networks or electronic communications services which may affect national security, by notice in writing (referred to in this Part as a "relevant vendor notice"), take any of the following measures (referred to in this Act as a "relevant vendor measure"):

(a) prohibit the installation by a provider of critical components made or supplied by a relevant vendor;

(b) prohibit or restrict the use by a provider of critical components made or supplied by a relevant vendor;

(c) place conditions on the installation or use by a provider of critical components made or supplied by a relevant vendor;

(d) prohibit the installation or use by a provider at a specified location of critical components made or supplied by a relevant vendor;

(e) require a provider to remove, disable or modify critical components made or supplied by a relevant vendor;