(h) upon the request of an exporter, importer or any person with a justifiable cause, assessments of the origin they would accord to a good are issued as soon as possible but no later than 150 days after a request for such an assessment provided that all necessary elements have been submitted. Requests for such assessments shall be accepted before trade in the good concerned begins and may be accepted at any later point in time. Such assessments shall remain valid for three years provided that the facts and conditions, including the rules of origin, under which they have been made remain comparable. Provided that the parties concerned are informed in advance, such assessments will no longer be valid when a decision contrary to the assessment is made in a review as referred to in subparagraph (j). Such assessments shall be made publicly available subject to the provisions of subparagraph (k);

(I) when introducing changes to their rules of origin or new rules of origin, they shall not apply such changes retroactively as defined in, and without prejudice to, their laws or regulations;

(j) any administrative action which they take in relation to the determination of origin is reviewable promptly by judicial, arbitral or administrative tribunals or procedures, independent of the authority issuing the determination, which can effect the modification or reversal of the determination;

(k) all information that is by nature confidential or that is provided on a confidential basis for the purpose of the application of rules of origin is treated as strictly confidential by the authorities concerned, which shall not disclose it without the specific permission of the person or government providing such information, except to the extent that it may be required to be disclosed in the context of judicial proceedings.

Article 3

Disciplines after the Transition Period

Taking into account the aim of all Members to achieve, as a result of the harmonization work programme set out in Part IV, the establishment of harmonized rules of origin, Members shall ensure, upon the implementation of the results of the harmonization work programme, that:

(a) they apply rules of origin equally for all purposes as set out in Article 1;

(b) under their rules of origin, the country to be determined as the origin of a particular good is either the country where the good has been wholly obtained or, when more than one country is concerned in the production of the good, the country where the last substantial transformation has been carried out;

? The rules of origin that they apply to imports and exports are not more stringent than the rules of origin they apply to determine whether or not a good is domestic and shall not discriminate between other Members, irrespective of the affiliation of the manufacturers of the good concerned;

(d) the rules of origin are administered in a consistent, uniform, impartial and reasonable manner;

(e) their laws, regulations, judicial decisions and administrative rulings of general application relating to rules of origin are published as if they were subject to, and in accordance with, the provisions of paragraph 1 of Article X of GATT 1994;

(f) upon the request of an exporter, importer or any person with a justifiable cause, assessments of the origin they would accord to a good are issued as soon as possible but no later than 150 days after a request for such an assessment provided that all necessary elements have been submitted. Requests for such assessments shall be accepted before trade in the good concerned begins and may be accepted at any later point in time. Such assessments shall remain valid for three years provided that the facts and conditions, including the rules of origin, under which they have been made remain comparable. Provided that the parties concerned are informed in advance, such assessments will no longer be valid when a decision contrary to the assessment is made in a review as referred to in subparagraph (h). Such assessments shall be made publicly available subject to the provisions of subparagraph (I);

(g) when introducing changes to their rules of origin or new rules of origin, they shall not apply such changes retroactively as defined in, and without prejudice to, their laws or regulations;

(h) any administrative action which they take in relation to the determination of origin is reviewable promptly by judicial, arbitral or administrative tribunals or procedures, independent of the authority issuing the determination, which can effect the modification or reversal of the determination;