3. Each Party shall systematically consider applying UN Regulations adopted after the entry into force of this Agreement, and shall inform each other of any changes regarding the implementation of those UN Regulations in its respective domestic legal system following the protocol established under the 1958 Agreement and in line with Articles 8 and 9.

4. Insofar as a Party has introduced or maintains domestic technical regulations, markings or conformity assessment procedures that diverge from UN Regulations or GTRs as permitted by paragraph 1, that Party shall review those domestic technical regulations, markings or conformity assessment procedures at regular intervals, preferably not exceeding five years, with a view to increasing their convergence with the relevant UN Regulations or GTRs. When reviewing their domestic technical regulations, markings and conformity assessment procedures, each Party shall consider whether the justification for the divergence still exists. The outcome of these reviews, including any scientific and technical information used, shall be notified to the other Party upon request.

5. Each Party shall refrain from introducing or maintaining domestic technical regulations, markings, or conformity assessment procedures which have the effect of prohibiting, restricting or increasing the burden for the importation and putting into service on their domestic market of products type-approved under UN Regulations for the areas covered by those UN Regulations unless such domestic technical regulations, markings or conformity assessment procedures are explicitly provided for by those UN Regulations.

Article 6

Type approval and market surveillance

1. Each Party shall accept on its market products which are covered by a valid UN type-approval certificate as compliant with its domestic technical regulations, markings and conformity assessment procedures, without requiring any further testing or marking to verify or attest compliance with any requirement covered by the UN type-approval certificate concerned. In the case of vehicle approvals, the UN Universal International Whole Vehicle Type Approval (U-IWVTA) shall be considered valid in respect of the requirements covered by the U-IWVTA. UN type-approval certificates issued by a Party can only be considered valid if that Party has acceded to the relevant UN Regulations.

2. Each Party shall only be required to accept valid UN type-approval certificates issued pursuant to the latest version of the UN Regulations it has acceded to.

3. For the purpose of paragraph 1, the following shall be considered sufficient proof of the existence of a valid UN type-approval:

(a) for whole vehicles, a valid UN Declaration of Conformance certifying compliance with a U-IWVTA;

(b) for equipment and parts, a valid UN type-approval mark affixed to the product; or

4. For the purpose of conducting market surveillance, the competent authorities of a Party may verify that the products covered comply, as appropriate, with

(a) all the domestic technical regulations of that Party; or

(b) the UN Regulations with which compliance has been attested, in accordance with this Article, by a valid UN Declaration of Conformance certifying compliance with a U-IWVTA in the case of whole vehicles, or by a valid UN type-approval mark affixed to the product or a valid UN type-approval certificate in the case of equipment and parts.

Such verifications shall be carried out by random sampling in the market and in accordance with the technical regulations referred to in point (a) or (b) of this paragraph, as the case may be.