Does National require an IDP in Liberia?

The minimum age to rent is typically 21 (18 in Michigan and New York, as required by state law); renters aged 21-24 pay a "Youthful Surcharge" of approximately $25 per day (varies by location, lower in some states such as $5/day in New York) and may be restricted to certain car classes.

A major credit card (Visa, MasterCard, Amex) in the primary renter's name with sufficient available credit is required; National generally does not accept debit cards, and renters without a ticketed return travel itinerary must provide a hold/deposit typically between $300 and $400 depending on location and vehicle class.

The renter's spouse or domestic partner who meets the same age and licence requirements drives free; other additional authorized drivers cost about $15 per day (typically $5/day in New York), and must be at least 21 with a valid licence. National requires a valid, unexpired full driver's licence held by the renter; for under-25 drivers some locations require the licence to have been held for at least one year, though National does not publish a uniform minimum tenure across all locations.

Vehicles rented in the U.S. or Canada are prohibited from being driven into Mexico; U.S.-Canada cross-border travel is generally permitted but one-way US/Canada drop-offs are limited to participating locations, and rentals originating in certain Mexican cities (e.g. Tijuana, Mexicali, Hermosillo, Monterrey, Saltillo) may cross into the U.S. after purchasing an extension of liability protection (about $10 USD/day).

National states that an International Driving Permit (IDP) is commonly requested in select countries and is generally recommended when travelling abroad; specifically, overseas travelers whose licence uses a non-Roman alphabet may need to present an IDP alongside their home-country licence.

Liberia operates no motorway toll or vignette system, so driving the public road network is free; budget instead for poor-road delays and the informal fees sometimes solicited at security checkpoints.

Monrovia parking is informal and unmetered, with attendants watching cars for a small Liberian/US-dollar tip; there are no paid-zone schemes or apps, and secure guarded parking is best for valuables overnight.

The drink-drive limit is 0.08% BAC; handheld phone use carries a stiff roadside fine (often exceeding a speeding fine and covering use even at lights), and penalties are typically enforced and paid on the spot at checkpoints.

Dial 911 for police and emergencies; do not leave the scene if there is vehicle damage or injury, exchange details, and obtain a police report which rental firms and insurers require.