Quick Comparison: K-3 vs CR-1/IR-1 K-3 Visa CR-1/IR-1 Visa Visa type Nonimmigrant Immigrant Who qualifies Spouse of a U.S. citizen Spouse of a U.S. citizen (IR-1) or LPR (CR-1) Primary forms I-130 + I-129F I-130 Status upon entry Nonimmigrant; must file AOS after arriving Immigrant immediately; becomes LPR at port