There are two main reasons why someone would want to replace a TB: 1  Function - The current one is broken and needs replaced. A typical scenario I've seen in this situation is the bushings which the throttle plate rod rides on will get worn out. 2  Performance - You want more giddyup!
If you've applied or petitioned for an immigration benefit in the United States, there's a certain waiting period while your forms are processed. You can check the status with the US Citizenship and Immigration Services (USCIS) website or sign up to get regular updates.
You must apply for the appropriate visa and bring to your visa interview appointment an I-797 Form (Notice of Action) that shows you changed your status. Arriving in America / I-94. More information on arrival procedures in the U.S. is available at the U.S. Customs and Border Protection site.lease obtain a new passport before you pay any visa fees or book an appointment. If you have an urgent need to travel, schedule an appointment or email us through online appointment system with your passport number and explanation of the emergency to see if you can proceed with your appointment.