| Tier | Description | Reference Fee | Copy Fee |
|---|---|---|---|
| Tier 1 | Students and researchers from nations in IAAO’s Emerging Market category | $0-10 per hour* | $0 per item |
| Tier 2 | Academics, government workers, and nonprofit researchers | $25 per hour | $20 per item |
| Tier 3 | Attorneys, consultants, and other nonmembers | $75 per hour | $40 per item |