[This post is updated on July 1, 2016]
The United States includes as many as 38 different types of phaseout schedule in TPP and 8 of them apply to the textile and apparel (T&A) sector.
In general, T&A products with lower base tariff rate seem to be given more generous phaseout treatment than T&A that are subject to higher base tariff rate. For example, although T&A products under category EIF can immediately enjoy duty-free treatment once TPP takes into force, their base tariff rate is also the lowest (7.9% on average). In comparison, whereas T&A products under category US6, US7, US8 and US9 are subject to the highest base tariff rate, they are given the least generous tariff cut (i.e. 35%) once TPP takes into effect. This will makes average tariff rate applied to these products remain the highest almost throughout the whole phaseout period. It should be noted that even though US11 apparently seems to be the most restrictive phaseout category (i.e. 50% cut on day 1 and the resulting rate will remain unchanged until the end of year 12), its average tariff rate actually will be lower than phaseout category US6, US7, US8 and US9.
In the following table, the U.S. phaseout schedule for T&A in the released TPP text based on the 8-digit Harmonized System (HS) code is matched with the Office of Textiles and Apparel (OTEXA) product category. Results show that products equivalent to around 37.5% of the value of U.S. textile and apparel imports from Vietnam in 2015 will enjoy immediate duty-free treatment once TPP takes into force (i.e. EIF), approximately 4% will be subject to medium-level protection (i.e. EIF+B5) and 58.6% are under high (i.e. EIF+ any of the followings: US6, US7, US8, US9, US10, US11) or very high level of protection (i.e. any of the followings: US6, US7, US8, US9, US10, US11).
Note: “Level of protection” in the above table is defined as the following: 1) Low level of protection: EIF only; 2) Medium level of protection: EIF+B5; 3) High level of protection: EIF+any of the followings: US6, US7, US8, US9, US10, US11; 4) Very high level of protection: any of the followings: US6, US7, US8, US9, US10, US11 only.