| A1 | DIPLOMATIC OR CONSULAR |
| A2 | FRGN GOVT EMPLOYEE/FAMILY |
| A3 | PERS EMPL/FAM MBR OF A1 OR A2 |
| AR1 | Alien Registration |
| AY | ASYLEE |
| B1 | TEMPORARY VISITOR FOR BUSINESS |
| B2 | TEMPORARY VISITOR FOR PLEASURE |
| C1 | NON-CITIZEN IN TRANSIT TO US |
| C2 | NON-CITIZEN IN TRANSIT TO UN |
| C3 | FRGN GOVT EMPL IN TRANS |
| D1 | CREWMAN DEPARTING FROM THE US |
| D2 | CREWMAN DEPARTING FROM GUAM |
| DL | Distance Learning |
| E1 | TREATY TRADER, SPOUSE & CHILD |
| E2 | TREATY INVESTOR, SPOUSE & CHLD |
| E3 | AUSTRALIAN IN SPCLTY OCCUPAT |
| F1 | ACADEMIC STUDENT |
| F1O | OPTIONAL PRACTICAL TRAINING |
| F2 | SPOUSE OR CHILD OF F1 |
| G1 | PRIN REP & FAM OF FRGN GOVT |
| G2 | OTHER REP & FAM OF FRGN GOVT |
| G3 | NONRECOGNIZED FRGN GOVT REP |
| G4 | INTERNATIONAL ORGANIZ OFFICER |
| G5 | PERS EMPL & FAM OF G1-4 |
| H1B | PERSON IN SPECIALTY OCCUPATION |
| H1C | NURSES IN SHORTAGE AREAS |
| H2A | TEMP AGRICULTURAL WORKER |
| H2B | TEMP NON-AGRICULTURAL WORKER |
| H3 | TRAINEE OR SPECIAL EDU VISIT |
| H4 | SPOUSE OR CHILD OF H VISA |
| I | MEDIA OR JOURNALIST |
| J1 | EXCHANGE VISITOR |
| J1R | EXCHANGE VISITOR - RESEARCHER |
| J2 | SPOUSE/CHILD OF EXCHG VISITOR |
| K1 | FIANCEE OF US CITIZEN |
| K2 | CHILD OF FIANCEE OF US CITIZEN |
| K3 | SPOUSE OF A US CITIZEN |
| K4 | CHILD OF K3 |
| L1 | INTRACOMPANY TRANSFEREE |
| L2 | SPOUSE OR CHILD OF AN L1 |
| M1 | VOCATIONAL STUDENT |
| M2 | SPOUSE OR CHILD OF M-1 |
| N1 | PERM MEMB/STAFF OF NATO |
| N2 | REPS/ADVIS MEMB STATES NATO |
| N3 | CLERICAL STF MMB STATE NATO |
| N4 | FOREIGN NATIONAL-NATO OFFICAL |
| N5 | FOREIGN NATIONAL-NATO EXPERT |
| N6 | MEMB OF CIVILIAN COMP OF NATO |
| N7 | ATTEND/PERSONAL EMP OF N1-N6 |
| N8 | PARENT OF AN SK3 OR SN3 |
| N9 | PARENT OF AN SK3 OR SN3 |
| O1 | Extraordinary Ability |
| O1A | INDIVID - EXTRORD ABLTY/ACHIEV |
| O1B | INDIVID - ABILITY IN ARTS/MOT |
| O2 | NON-CITIZ ACCOMPANYING AN O1 |
| O3 | SPOUSE OR CHILD OF O1/O2 |
| OT | OTHER |
| OVR | OVERSEAS - DISTANCE |
| P1 | ATHLETE/MEMBER OF ENTRTAIN GRP |
| P2 | ARTIST OR ENTERTAINER |
| P3 | CULTURALLY UNIQUE ARTISTS |
| P4 | IMMEDIATE FAMILY OF P 1-3 |
| PR | PERMANENT RESIDENT OF USA |
| Q1 | CULTURAL EXCHANGE VISITORS |
| Q2 | IRISH PEACE PROC/CULT & TRN PR |
| Q3 | SPOUSE/CHILD OF Q1 OR Q2 |
| R1 | RELIGIOUS WORKER |
| R2 | SPOUSE OR CHILD OF R1 |
| RE | REFUGEE |
| S6 | FEDERAL WITNESS - TERRORISM |
| S7 | FAMILY MEMBER OF S5 OR S6 |
| SS | FEDERAL WITNESS - CRIM ORG/ENT |
| T1 | VICTIM - TRAFFICKING |
| T2 | SPOUSE OF T1 |
| T3 | CHILD OF T1 |
| T4 | PARENT OF T1 |
| TD | SPOUSE OR CHILD OF TN1 OR TN2 |
| TN1 | CANADA (NAFTA) |
| TN2 | MEXICO (NAFTA) |
| TPS | TEMPORARY PROTECTIVE STATUS |
| U1 | VICTIM(S) OF CRIMINAL ACTIVITY |
| U2 | SPOUSE OF U1 |
| U3 | CHILD OF U1 |
| U4 | PARENT OF U1 |
| V1 | SPOUSE OF PERMANENT RESIDENT |
| V2 | CHILD OF PERMANENT RESIDENT |
| V3 | DERIVATIVE CHILD OF V1 OR V2 |
| VWP | VISA WAIVER – BUSINESS/TOURIST |
