Amends the Harmonized Tariff Schedule of the United States to suspend temporarily the duty on water-dispersible polyisocyanate products based on nexamethylene diisocyanate trimer and cyclohexanamine, N,N-dimethyl-, compounds with 3-(cyclohexylamino)-1-propanesulfonic acid-blocked 1,6-diisocyanatohexane homopolymer.