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The US collects information and data about immigrants, refugees and asylum seekers in order to better serve immigrants and US citizens alike. The USCIS is one agency collecting such data. One form used to prove such statistical information is USCIS form I-643 (Health and Human Services Statistical Data for Refugee/Asylee Adjusting Status). If you are an asylum seeker, refugee, or asylee and are seeking to adjust your immigration status, you may be asked to fill out this form as well in order to help with the collection of data. Both old and newer versions of the form are accepted. Filing this form will help the USCIS gather information which may be helpful to other asylum seekers.