Compliance with the valuation agreement is important for U.S. exporters, including to ensure that market access opportunities offered by tariff reductions are not compromised or denied by unjustified and inappropriate “increases” in the value for duty of goods subject to customs duties. The use of arbitrary and inappropriate “increases” in the valuation of goods by importing countries in the application of tariffs can lead to an unjustified doubling or tripling of tariffs. Any enterprise involved in international trade may benefit from the fair and predictable rules of this Agreement for the valuation of goods for customs purposes. 1. (a) may at any time, during the assessment of a request for a preliminary ruling, request additional information from the person requesting the decision; The agreement aims to establish a uniform, equitable, uniform and neutral system for the valuation of goods imported for customs purposes, to respect trading conditions and to prohibit the use of arbitrary or fictitious customs values. . . .