Yancin dokar azurfa ta Tower tsabar kudin "dala ɗaya" ce da aka haƙa a ƙarƙashin lasisin Commonwealth of the Northern Mariana Islands (CNMI) a shekarata 2004, koda yake CNMI ba ta da ikon wata doka don bayarwa ko ba da izini a cikin dokar . Duk da maganganun da ba su dace ba a cikin tallace-tallace, sannan ba a fitar da shi daga Mint na Amurka ba kuma ba a la'akari da ita dokar, kuma ba a la'akari da shi mara yawo na doka . CNMI tana karɓar kuɗin sarauta daga abin da aka samu na siyar da tsabar kudi wato azurfa. A zahiri SoftSky ne ya kera tsabar kudin, mai yin tsabar tunawa da Wyoming . Bangaren tsabar kudin yana da hoton da aka yi na ainihin tsari na ƙira don Hasumiyar 'Yanci ta Daniel Libeskind da za a gina a tsohon wurin Cibiyar Ciniki ta Duniya a birnin New York. Har ila yau, a kan abin da ya faru akwai taken kasa na Amurka "Ga Allah Mun Dogara" da kalmomin "Hasumiyar 'Yanci, Yuli 4, 2004."