The USCIS handles cases in the order it receives them and provides processing times that are based on historical data. They are also piloting a new method of calculating these times. The following examples from the Albuquerque office are based on this new method:
- Citizenship and Issuance of Certificate Under Section 322 (N-600K): 10 to 22.5 months
- Certificate of Citizenship (N-600): 6.5 to 14.5 months
- Naturalization (N-400): 12 to 17.5 months
In this method, the maximum number of months you see for a form type is the duration for processing 93% of the applications. In other words, only a small percentage of applications take longer than the time you see for your form.