There is no"voluntary deportation". You probably mean "voluntary departure". If that is the case, it depends on why you are in removal proceeding in the first place. If you have violated other immigration laws, such as overstaying your authorized stay; entering without inspection; accepting unauthorized employment, failure to otherwise maintain your status, you may be barred for 3 years or even 10 years to return to the US.
Answered on Jul 13th, 2011 at 1:26 PM