Nigerian citizens applying for United States’ visas will be required to pay a visa issuance fee, or reciprocity fee, with effect from August 29. The reciprocity fee will be charged in addition to the non-immigrant visa application fee, also known as the Machine Readable Visa fee, which all applicants pay at the time of application. The reciprocity fee is applicable for all approved applications for non-immigrant visas in B, F, H1B, I, L, and R visa classifications, the US embassy said in a statement in Abuja on Tuesday.