Demarofirst you need to pay 131 u.s. Dollars for the u.s. Application visa fee, then you have to fill out an electronic application form (ds-156&ds157) handwritten forms are no longer accepted.the DS156 form can be found and downloaded http//visaforms.state.gov the DS157httpfoia.state.gov/forms/visa/ds0157.pdf... Each electronic formwill have a barcodeused for scanning the application when you appear at the embassy for your appointment. Make sure that your printer prints the barcode ledgible so that it is scannable or else you can be turn back if the barcode cannot be scanned. And asked to return with a readable barcode. The average wait time between the submitting of the application and interview varies, each week appt. Are added and cancelled. All this depends on the volume and on the date of submission.visa appointments and wait times can be looked up at this sitehttp/travel.state,gov/visa/temp/wait/temp/visitors..waitphp... Please also note thatbased on individual circumstaces in each case such as special clearances,incomplete applications,fraud investigations may influence the processing of individual cases. So please see that your forms are correctly completed, and all questions answered. So that you will not have .to redo your forms and get held up.