Furthermore, some people who consume too much iodine (either from foods or supplements) or who take medications containing iodine (such as amiodarone) may cause the thyroid gland to overproduce thyroid hormones. Finally, some women may develop hyperthyroidism during pregnancy or in the first year after giving birth.
It takes anywhere from 6-8 months from filing of the application to interview. The employment authorization card typically comes 60-90 days after filing assuming all initial evidence has been submitted. After you receive your employment authorization card, you can apply for a social security card.
Once your application for naturalization is filed, the approval time to become a US citizen varies by person and location. The short answer is that it can take anywhere from 5 to 8 months between application and interview. If you live in an area with heavy immigrant populations, it is not unusual to wait 2 years or more to become a US citizen. The USCIS (US Citizenship and Immigration Services or Immigration Services) claims to be working on reducing the processing time for naturalization to approximately 6 months. However, that goal has not yet been reached. The waiting time between the filing of the application for naturalization and the interview can seem especially long.