There will be five new reverse (back) designs each year (one in 2021), each depicting a national park or national site – one from each state, the federal district, and each territory.
每一年中将会推出5个新的背面设计（2021年为1个），每一个设计都将描绘一个国家公园或者国家景观（从每一州、特区、领土中各选其一）。