12 years ago By Chief Editor USCIS published improved forms in easier-to-use formats and with new data collection technologies: Form N-600, Application for Certificate of Citizenship, and Form N-336, Request for a Hearing on a Decision in Naturalization Proceedings Form I-601, Application for Waiver of Grounds of Inadmissibility Form I-90, Application to Replace Permanent Resident Card Agency USCIS Citizenship and Naturalization Citizenship Immigration Law Forms