Hiya,
I remember recentltly telling a few people that if you have a CR-1 Visa (married less than 2 years on day of entry) as the result of your interview that you apply to remove the conditions of residence 90 days before the expiration of the 1 year green card you / your spouse were granted on entering the US.
My bad.
The correct information is this, from the embassy website. My appologies. Luckily this shouldnt effect anyone at all but I thought Id put the right info out there ASAP.
"Applicants who qualify for a visa on the basis of a marriage which was entered into less than two years prior to the date on which he/she is admitted into the United States as an immigrant, or in the case of a fiancé(e) visa holder completes an application for an adjustment of status, will be granted conditional resident status for a two year period. Ninety days before the two year anniversary of being granted conditional resident status, both the petitioner and conditional resident will be required to file a petition, form I-751, with the Immigration and Naturalization Service to have the conditional resident status removed."
So the conditional resident's green card is valid for 2 years.
Take care all,
Sarah