I601A/B - IMMIGRANT PETITIONER'S APPLICATION FOR A GREEN CARD ON THE BASIS OF MARRIAGE TO U. S. VISA MAJORITY CITIZENS IN ELECTRONIC TRANSMISSION (i601a)
I94 - ARREST RECORD AND DEPORTATION ORDER INELIGIBLE FOR ADMISSION INTO THE UNITED STATE AS ILLEGAL ALIEN. USCIS has the authority to issue a deportation order against an alien who has been arrested and detained in removal proceedings as illegal aliens， but have not been deported or removed（i94）， this is usually for people that are on administrative bond pending their case， it will be cancelled in due course；
O83 - SUPPLEMENT NO. ONE TO AN INSTALLMENT OF LETTER RULING (o83) in this document you can find out of which type your visa request falls into， i. e. immigrant petitioner’s application for permanent residence based on marriage to United States citizen；
VLN – VALIDATION OF NATIONAL IDENTIFICATION CARDS FROM MEXICO（vln）; Validate National Identification Card from Mexico
