# What are the national-specific driver rules and cross-border allowances for additional drivers, including fee waivers for spouses or domestic partners, and travel restrictions for driving into Canada or Mexico from the SeaTac Rental Car Facility?

**Category:** Visitor Guides
**Verified:** 2026-08-05
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-additional-driver-and-cross-border-policies
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

At SeaTac Rental Car Facility, most rental companies waive the additional driver fee for spouses or domestic partners who meet licensing requirements. Cross-border travel into Canada is generally permitted with prior notification and a valid passport, but driving into Mexico is often restricted or prohibited. Specific fees, waiting periods, and documentation requirements apply.

## What to know

At the SeaTac Rental Car Facility (located at 3140 S 160th St, SeaTac, WA 98188), national-specific driver rules and cross-border allowances vary by rental company, but common policies apply. For additional drivers, most major agencies (e.g., Enterprise, Hertz, Avis) waive the standard additional driver fee—typically $13 to $15 per day—for a spouse or domestic partner, provided they present a valid driver’s license and meet the minimum age requirement (usually 21 or 25). This waiver is automatic upon request and does not require a separate contract. For cross-border travel into Canada, rental companies generally permit it with at least 24 to 48 hours’ advance notice, a valid passport for all occupants, and proof of insurance. A cross-border fee of approximately $50 to $100 may apply, and the vehicle must be returned to the U.S. within 30 days. Driving into Mexico is heavily restricted: many companies prohibit it entirely, while others allow it only with prior written authorization, a Mexican auto insurance policy (costing $20–$40 per day), and a mandatory vehicle permit fee of about $50. Violations can result in fines up to $500 or loss of insurance coverage. Always confirm policie

## Related

- https://seatacrentalcarfacility.com/en/knowledge/seatac-additional-driver-and-cross-border-policies