美国移民法规定非公民必须随身携带绿卡或I－９４

所以非公民跑马拉松必须随身携带绿卡或I－９４。

违反者可以判处一个月的监禁，如果违反１２次
累加够一年也就够驱除出境的标准了

http://straylight.law.cornell.edu/uscode/html/uscode08/usc_sec_08_00001304----000-.html

http://www.xys.org/forum/db/118/60.html

(e) Personal possession of registration or receipt card; penalties Every alien, eighteen years of age and over, shall at all times carry with him and have in his personal possession any certificate of alien registration or alien registration receipt card issued to him pursuant to subsection (d) of this section. Any alien who fails to comply with the provisions of this subsection shall be guilty of a misdemeanor and shall upon conviction for each offense be fined not to exceed $100 or be imprisoned not more than thirty days, or both.