- 美国公民及移民服务局:https://www.uscis.gov/
- 美国签证 : https://travel.state.gov/content/travel/en/us-visas.html
- 签证公告 : https://travel.state.gov/content/travel/en/legal/visa-law0/visa-bulletin.html
- 移民表格和费用: https://www.uscis.gov/forms
- 申请ITIN 号码 (个人报税识别号码) : https://www.irs.gov/individuals/individual-taxpayer-identification-number
- 寻找体检医生 : https://my.uscis.gov/findadoctor
- 网上查询案件情况 : https://egov.uscis.gov/casestatus/landing.do
- 案件处理时间 : https://egov.uscis.gov/processing-times/
- 社会保障办公室 : https://secure.ssa.gov/ICON/main.jsp
- 机动车驾驶管理处, 加州 : https://www.dmv.ca.gov/portal/dmv
- 修改地址 : https://www.uscis.gov/addresschange
- 对于新移民 : https://www.uscis.gov/tools/settling-us/welcome-united-states
- 英文课或公民考试辅导班搜寻 : https://my.uscis.gov/findaclass
- 模拟公民测试 : https://my.uscis.gov/prep/test/civics