1. Nothing in this Chapter shall be construed to prevent a Party from taking any action or from not disclosing any information that it considers necessary for the protection of its essential security interests relating to the procurement:

(a) of arms, ammunition25 or war material;
(b) or to procurement indispensable for national security; or  
(c) for national defence purposes

2. Subject to the requirement that such measures are not applied in a manner that would constitute a means of arbitrary or unjustifiable discrimination between Parties where the same conditions prevail or a disguised restriction on international trade, nothing in this Chapter shall be construed to prevent a Party from imposing or enforcing measures:

(a) necessary to protect public morals, order or safety;
(b) necessary to protect human, animal or plant life or health;
(c) necessary to protect intellectual property; or
(d) relating to goods or services of persons with disabilities, of philanthropic institutions or of prison labour.