; (ii) allow for similar methods to be used to calculate the pollution intensity of covered products imported from countries that are not parties to the agreement; and (iii) allow for each country that is a party to the agreement to consistently validate the monitoring and reporting information of the other countries that are parties to the agreement with respect to products covered by the agreement; (F) design characteristics compatible with subchapter E of the Internal Revenue Code, as added by title I; (G) design characteristics compatible with the provisions of this title; and (H) processes for how to add— (i) additional countries to the agreement; and (ii) additional covered products to the agreement. (4) Consideration of third-party participation (A) In general An international partnership agreement entered into under this title may include direction for an entity that is not from a country that is a party to the agreement to— (i) serve as a repository of relevant pollution data from countries that are parties to the agreement; (ii) provide validation of pollution intensity calculations and other requirements under paragraph (3)