| C20 | Child of an alien classified as C24 or C29 - conditional. | 
                  
                     
                     | C21 | Spouse of a lawful permanent resident alien (subject to country limitations) - conditional. | 
                  
                     
                     | C22 | Stepchild (under 21 years of age) of a lawful permanent resident alien (subject to
                           country limitations) - conditional.
                         | 
                  
                     
                     | C23 | Child of an alien classified as C21, C22, C26, or C27 (subject to country limitations)
                           - conditional.
                         | 
                  
                     
                     | C24 | Unmarried son or daughter (21 years of age or older) who is a stepchild of a lawful
                           permanent resident alien (subject to country limitations) - conditional.
                         | 
                  
                     
                     | C25 | Child of an alien classified as C24 or C29 - conditional. | 
                  
                     
                     | C26 | Spouse of a lawful permanent resident alien (subject to country limitations) - conditional. | 
                  
                     
                     | C27 | Stepchild (under 21 years of age) of a lawful permanent resident alien (subject to
                           country limitations) - conditional.
                         | 
                  
                     
                     | C28 | Child of an alien classified as C21, C22, C26, or C27 (subject to country limitations)
                           - conditional.
                         | 
                  
                     
                     | C29 | Unmarried son or daughter (21 years of age or older) who is a stepchild of a lawful
                           permanent resident alien (subject to country limitations) - conditional.
                         | 
                  
                     
                     | C31 | Married son or daughter who is a stepchild of a U.S. citizen - conditional. | 
                  
                     
                     | C32 | Spouse of an alien classified as C31 or C36 - conditional. | 
                  
                     
                     | C33 | Child of an alien classified as C31 or C36 - conditional. | 
                  
                     
                     | C36 | Married son or daughter who is a stepchild of a U.S. citizen - conditional. | 
                  
                     
                     | C37 | Spouse of an alien classified as C31 or C36 - conditional. | 
                  
                     
                     | C38 | Child of an alien classified as C31 or C36 - conditional. | 
                  
                     
                     | CF1 | Alien whose record of admission is created upon the conclusion of a valid marriage
                           contract after entering as a fiance or fiancee of a U.S. citizen - conditional.
                         | 
                  
                     
                     | CF2 | Minor stepchild of an alien classified as CF1 - conditional. | 
                  
                     
                     | CR1 | Spouse of a U.S. citizen - conditional. | 
                  
                     
                     | CR2 | Stepchild of a U.S. citizen - conditional. | 
                  
                     
                     | CR6 | Spouse of a U.S. citizen - conditional. | 
                  
                     
                     | CR7 | Stepchild of a U.S. citizen - conditional. | 
                  
                     
                     | CX1 | Spouse of a lawful permanent resident alien (exempt from country limitations)- conditional. | 
                  
                     
                     | CX2 | Stepchild (under 21 years of age) of a lawful permanent resident alien (exempt from
                           country limitations) - conditional.
                         | 
                  
                     
                     | CX3 | Child of an alien classified as CX2 or CX7 (exempt from country limitations) - conditional. | 
                  
                     
                     | CX6 | Spouse of a lawful permanent resident alien (exempt from country limitations)- conditional. | 
                  
                     
                     | CX7 | Stepchild (under 21 years of age) of a lawful permanent resident alien (exempt from
                           country limitations) - conditional.
                         | 
                  
                     
                     | CX8 | Child of an alien classified as CX2 or CX7 (exempt from country limitations) - conditional. | 
                  
                     
                     | E10 | Child of a priority worker classified as E11, E16, E12, E17, E13, or E18. | 
                  
                     
                     | E11 | Priority worker - alien with extraordinary ability. | 
                  
                     
                     | E12 | Priority worker - outstanding professor or researcher. | 
                  
                     
                     | E13 | Priority worker - certain multinational executive or manager. | 
                  
                     
                     | E14 | Spouse of a priority worker classified as E11, E16, E12, E17, E13, or E18. | 
                  
                     
                     | E15 | Child of a priority worker classified as E11, E16, E12, E17, E13, or E18. | 
                  
                     
                     | E16 | Priority worker - alien with extraordinary ability. | 
                  
                     
                     | E17 | Priority worker - outstanding professor or researcher. | 
                  
                     
                     | E18 | Priority worker - certain multinational executive or manager. | 
                  
                     
                     | E19 | Spouse of a priority worker classified as E11, E16, E12, E17, E13, or E18. | 
                  
                     
                     | E21 | Professional holding an advanced degree or of exceptional ability. | 
                  
                     
                     | E22 | Spouse of an alien classified as E21 or E26. | 
                  
                     
                     | E23 | Child of an alien classified as E21 or E26. | 
                  
                     
                     | E26 | Professional holding an advanced degree or of exceptional ability. | 
                  
                     
                     | E27 | Spouse of an alien classified as E21 or E26. | 
                  
                     
                     | E28 | Child of an alien classified as E21 or E26. | 
                  
                     
                     | E30 | Child of a skilled worker or professional classified as E31, E36, E32, or E37. | 
                  
                     
                     | E31 | Alien who is a skilled worker. | 
                  
                     
                     | E32 | Professional who holds a baccalaureate degree or who is a member of a profession. | 
                  
                     
                     | E34 | Spouse of a skilled worker or professional classified as E31, E36, E32, or E37. | 
                  
                     
                     | E35 | Child of a skilled worker or professional classified as E31, E36, E32, or E37. | 
                  
                     
                     | E36 | Alien who is a skilled worker. | 
                  
                     
                     | E37 | Professional who holds a baccalaureate degree or who is a member of a profession. | 
                  
                     
                     | E39 | Spouse of a skilled worker or professional classified as E31, E36, E32, or E37. | 
                  
                     
                     | EW0 | Child of an alien classified as EW3 or EW8. | 
                  
                     
                     | EW3 | Other worker performing unskilled labor, not of a temporary or seasonal nature, for
                           which qualified workers are not available in the United States.
                         | 
                  
                     
                     | EW4 | Spouse of an alien classified as EW3 or EW8. | 
                  
                     
                     | EW5 | Child of an alien classified as EW3 or EW8. | 
                  
                     
                     | EW8 | Other worker performing unskilled labor, not of a temporary or seasonal nature, for
                           which qualified workers are not available in the United States.
                         | 
                  
                     
                     | EW9 | Spouse of an alien classified as EW3 or EW8. | 
                  
                     
                     | F11 | Unmarried son or daughter of a U.S. citizen. | 
                  
                     
                     | F12 | Child of an alien classified as F11 or F16. | 
                  
                     
                     | F16 | Unmarried son or daughter of a U.S. citizen. | 
                  
                     
                     | F17 | Child of an alien classified as F11 or F16. | 
                  
                     
                     | F20 | Child of an alien classified as F24 or F29 (subject to country limitations). | 
                  
                     
                     | F21 | Spouse of a lawful permanent resident alien (subject to country limitations). | 
                  
                     
                     | F22 | Child (under 21 years of age) of a lawful permanent resident alien (subject to country
                           limitations).
                         | 
                  
                     
                     | F23 | Child of an alien classified as F21 or F26 (subject to country limitations). | 
                  
                     
                     | F24 | Unmarried son or daughter (21 years of age or older) of a lawful permanent resident
                           alien (subject to country limitations).
                         | 
                  
                     
                     | F25 | Child of an alien classified as F24 or F29 (subject to country limitations). | 
                  
                     
                     | F26 | Spouse of a lawful permanent resident alien (subject to country limitations). | 
                  
                     
                     | F27 | Child (under 21 years of age) of a lawful permanent resident alien (subject to country
                           limitations).
                         | 
                  
                     
                     | F28 | Child of an alien classified as F21 or F26 (subject to country limitations). | 
                  
                     
                     | F29 | Unmarried son or daughter (21 years of age or older) of a lawful permanent resident
                           alien (subject to country limitations).
                         | 
                  
                     
                     | F31 | Married son or daughter of a U.S. citizen. | 
                  
                     
                     | F32 | Spouse of an alien classified as F31 or F36. | 
                  
                     
                     | F33 | Child of an alien classified as F31 or F36. | 
                  
                     
                     | F36 | Married son or daughter of a U.S. citizen. | 
                  
                     
                     | F37 | Spouse of an alien classified as F31 or F36. | 
                  
                     
                     | F38 | Child of an alien classified as F31 or F36. | 
                  
                     
                     | F41 | Brother or sister of a U.S. citizen. | 
                  
                     
                     | F42 | Spouse of an alien classified as F41 or F46. | 
                  
                     
                     | F43 | Child of an alien classified as F41 or F46. | 
                  
                     
                     | F46 | Brother or sister of a U.S. citizen. | 
                  
                     
                     | F47 | Spouse of an alien classified as F41 or F46. | 
                  
                     
                     | F48 | Child of an alien classified as F41 or F46. | 
                  
                     
                     | FX1 | Spouse of a lawful permanent resident alien (exempt from country limitations). | 
                  
                     
                     | FX2 | Child (under 21 years of age) of a lawful permanent resident alien (exempt from country
                           limitations).
                         | 
                  
                     
                     | FX3 | Child of an alien classified as FX1, FX2, FX7, or FX8 (exempt from country limitations). | 
                  
                     
                     | FX6 | Spouse of a lawful permanent resident alien (exempt from country limitations). | 
                  
                     
                     | FX7 | Child (under 21 years of age) of a lawful permanent resident alien (exempt from country
                           limitations).
                         | 
                  
                     
                     | FX8 | Child of an alien classified as FX1, FX2, FX7, or FX8 (exempt from country limitations). | 
                  
                     
                     | IF1 | Alien whose record of admission is created upon the conclusion of a valid marriage
                           contract after entering as a fiance or fiancee of a U.S. citizen.
                         | 
                  
                     
                     | IF2 | Minor child of an alien classified as IF1. | 
                  
                     
                     | IR0 | Parent of a U.S. citizen. | 
                  
                     
                     | IR1 | Spouse of a U.S. citizen. | 
                  
                     
                     | IR2 | Child of a U.S. citizen. | 
                  
                     
                     | IR3 | Orphan adopted abroad by a U.S. citizen. | 
                  
                     
                     | IR4 | Orphan to be adopted by a U.S. citizen. | 
                  
                     
                     | IR5 | Parent of a U.S. citizen. | 
                  
                     
                     | IR6 | Spouse of a U.S. citizen. | 
                  
                     
                     | IR7 | Child of a U.S. citizen. | 
                  
                     
                     | IR8 | Orphan adopted abroad by a U.S. citizen. | 
                  
                     
                     | IR9 | Orphan to be adopted by a U.S. citizen. | 
                  
                     
                     | NA3 | Child born during the temporary visit abroad of a birth parent who is a lawful permanent
                           resident alien or national of the United States.
                         | 
                  
                     
                     | XE3 | Child born subsequent to the issuance of a visa. Parent is employment-based preference
                           immigrant.
                         | 
                  
                     
                     | XF3 | Child born subsequent to the issuance of a visa. Parent is a family-based preference
                           immigrant.
                         | 
                  
                     
                     | XR3 | Child born subsequent to the issuance of a visa. Parent is an immediate relative immigrant. |