Jacob, I think some of us have learned that the people who answer the phone at the embassy work in the cafeteria. I never saw anything about translating documents for the interview to English either, however, for the birth certificate, it's my understanding that it should be translated to English as it will be required once the beneficiary gets to the US to get a drivers license as an example, so I would say, get it translated prior to your interview, but submit the Spanish version and if they ask for it in English, you already have it to give them.
Jon & Clau
Jon&Clau got a reaction from didopage in Need help with document translation for interview