Does Avis require an IDP in Costa Rica?

Avis's standard minimum rental age is 25, though it rents to drivers as young as 21 in most US states/provinces (some locations require 25 by local law); renters aged 21-24 pay a young-driver surcharge of roughly $25 per day in the US (about $35/day in Canada).

Avis requires an Avis-honored credit or charge card (Visa, Mastercard, Amex, etc.) and places an authorization hold covering the estimated charges plus a security amount; Visa/Mastercard debit cards are accepted at most US locations but are subject to stricter checks, and the card must be in the renter's name.

Additional drivers must be at least 25 (or meet the underage rules) with a valid licence and typically cost about $13 per day, capped near $65 per rental; in California the fee is waived for a spouse, parent, sibling or child of the renter. Avis requires a valid driver's licence held for the entire rental period that is not suspended, expired, revoked, cancelled or surrendered; it does not publish a fixed minimum holding period in the US, though some international locations require the licence to have been held for 1-2 years.

Avis generally permits US-to-Canada travel if the renting location is notified in advance, but driving into Mexico is restricted (typically corporate accounts only, no one-way, and Mexican insurance purchased through Avis from border states); one-way rentals are offered with a drop-off charge that may apply on certain rates.

Avis states that "International Driver's Permits are valid only if presented with the original local license. An International Driver's Permit is not acceptable by itself." Foreign licences are accepted if the issuing country participated in the 1949 Geneva Convention on Road Traffic or has a reciprocal agreement with the US; non-Roman-alphabet licences effectively require an IDP, and renters with a foreign licence may need to present a passport.

A handful of routes are tolled, most notably Ruta 27 (San Jose to the Pacific via Caldera) with several small booths; tourists pay cash in colones (typically a few hundred to ~1,000 colones per booth) at the cabin.

Curbs painted yellow forbid stopping near hydrants, bus stops and taxi stands; many town centres run paid street zones ('boletas de parquimetro') where you buy and display a paper ticket, and 'cuidacarros' informally watch parked cars for a small tip.

Speeding tickets are notoriously steep (roughly 100,000-300,000+ colones, around US$200-450 for serious excess), and fines for phone use or no seatbelt also run into the tens of thousands of colones; transit police issue a ticket rather than collect cash roadside, and rental firms pass camera/photo-radar fines to the renter's card.

Call 911 and notify the rental company immediately; by law you must NOT move the vehicles until the transit police (Transito) and the INS insurance inspector arrive and document the scene, even if you are blocking traffic.