# What are the corporate account verification requirements and additional driver policies at SeaTac?

**Category:** Visitor Guides
**Verified:** 2026-09-09
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-corporate-accounts-and-driver-policies
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

Corporate accounts require proof of employment, and spouses/domestic partners may waive the $15/day additional driver fee.

## What to know

To utilize a corporate Contract ID (CID) at the SeaTac Rental Car Facility, the primary renter must adhere to strict verification protocols. Each customer is required to present valid proof of employment or corporate authorization, which typically includes a company-issued ID card, a formal letter on corporate letterhead, or a verified corporate email signature. Without these documents, the rental agency may decline to apply the corporate rate to the transaction. Regarding additional drivers, the standard policy for any extra driver beyond the primary renter incurs a fee of $15 per day per person. However, a specific waiver exists for corporate clients: if the additional driver is the legal spouse or a registered domestic partner of the primary renter, the $15/day fee is completely waived, provided they can prove the relationship. All drivers must still possess a valid driver's license and meet the minimum age requirements for Washington State to ensure insurance coverage remains valid under the corporate rental agreement.

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-corporate-accounts-and-driver-policies