Unnecessary Obstacles
4. No Party may prepare, adopt, maintain or apply any standards-related measure with a view to or with the effect of creating an unnecessary obstacle to trade between the Parties. An unnecessary obstacle to trade shall not be deemed to be created if:
(a) the demonstrable purpose of such measure is to achieve
a legitimate objective; and
(b) such measure does not operate to exclude goods of
another Party that meet that legitimate objective.
Article 905: Use of International Standards
1. Each Party shall use, as a basis for its standards-related measures, international standards or international standards whose completion is imminent, except where such standards would be an ineffective or inappropriate means to fulfill its legitimate objectives, for example because of fundamental climatic, geographical, technological or infrastructural factors, scientific justification or the level of protection that the Party considers appropriate.
2. A Party's standards-related measure that conforms to an international standard shall be presumed to be consistent with Article 904(3) and (4).
3. Paragraph 1 shall not be construed to prevent a Party, in pursuing its legitimate objectives, from adopting, maintaining, or applying any standards-related measure that results in a higher level of protection than would be achieved if such measure were based on an international standard.
Article 906: Compatibility and Equivalence
1. Recognizing the crucial role of standards-related measures in promoting and protecting legitimate objectives, the Parties shall, in accordance with this Chapter, work jointly to enhance the level of safety and of protection of human, animal and plant life and health, the environment and consumers.