| Statutory basis | INA § 203(b)(1)(A); 8 C.F.R. § 204.5(h) | INA § 203(b)(2) with labor certification under INA § 212(a)(5)(A) |
| Visa category | Immigrant (first preference) | Immigrant (second preference) |
| Employer/sponsor required | No | Yes — sponsoring employer initiates PERM and files I-140 |
| Self-petition allowed | Yes | No |
| Standard / qualifying threshold | Sustained national or international acclaim; three of ten regulatory criteria, followed by a final-merits determination | The petitioner must qualify for an EB-2-eligible position (advanced degree or equivalent, or exceptional ability), and the labor-certification process must conclude that no qualified U.S. worker is available for the role |
| Process stages | I-140 (USCIS) | Prevailing-wage determination (DOL) → recruitment campaign → labor-certification filing (DOL) → I-140 (USCIS) |
| Numeric annual cap | EB-1 worldwide cap with per-country limits | EB-2 worldwide cap with per-country limits; multi-year backlog for India and China |
| Premium processing | Available for I-140 for an additional fee | Available for I-140 for an additional fee; not available for the PERM stages |
| Adjustment of status path | I-485 once priority date is current | I-485 once priority date is current |
| I-140 portability | AC21 (INA § 204(j)) portability available once the I-485 has been pending 180+ days, with an approved (or approvable) I-140 | AC21 (INA § 204(j)) portability available once the I-485 has been pending 180+ days, with an approved (or approvable) I-140; subject to same-or-similar position requirement |
| Employer dependence pre-portability | None | Significant — the petitioner must remain in the sponsored position through key milestones |
| Cost | USCIS filing fee for I-140 plus optional premium-processing fee; consult the current USCIS fee schedule | DOL PERM process costs (employer-borne by regulation), USCIS filing fee for I-140, optional premium-processing fee for I-140; consult the current USCIS fee schedule |
| Typical timeline | Months from filing to I-140 decision | PERM stage often 12–24 months or longer (variable with audit and processing posture); plus I-140 timeline; plus EB-2 backlog for India/China |
| Family beneficiaries | Spouse and unmarried children under 21 derive E-14/E-15 | Spouse and unmarried children under 21 derive E-22/E-23 |