I think I found my answer on the USCIS website.
https://www.uscis.gov/green-card/after-green-card-granted/conditional-permanent-residence/remove-conditions-permanent-residence-based-marriage
How to Apply to Remove the Conditions
You and your spouse must apply together to remove the conditions on your residence by filing Form I-751. You should apply during the 90 days before your second anniversary as a conditional resident. The expiration date on your green card is also the date of your second anniversary as a conditional resident. If you do not apply to remove the conditions in time, you could lose your conditional resident status and be removed from the country.
Case completed at NVC!!! WOOHOO!!
Interview date is Feb. 18, 2015
My wife is getting her medical exam today. I'm so happy we finally going to be together.