Kadoma License Center (Osaka): The Booking Trap Wasting Your Day Off

Information current as of March 2026 based on the Osaka Prefectural Police gaimen kirikae page, the Kadoma test center procedures page, and the Osaka Traffic Safety Association practice course information.

If you live in Osaka City, northern Osaka, or anywhere along the Keihan line, Kadoma is your designated license center for converting a foreign driver's license. It is the larger of Osaka's two test centers (the other being Komyoike in the south) and handles the highest volume of foreign license conversions in the Kansai region. Whether you need the full gaimen kirikae process with written and driving tests, or you're from an exempt country needing only a document review and aptitude check, everything happens here.

I wrote this because questions about Kadoma keep coming up in foreign resident communities -- the booking process changed in January 2026 and most online guides haven't caught up. People are still describing a phone reservation system that no longer applies to exempt-country applicants, and the driving test advice out there often mixes up pre-October 2025 rules with the current stricter standards. This guide covers the Kadoma-specific details: how to book, what the actual driving course looks like, and what catches people off guard on test day.

How to book your appointment at Kadoma

The booking process depends entirely on whether your country is on Japan's exempt list (特例対象国 / tokurei taishou koku). Exempt countries include the US (some states such as Ohio and Virginia), UK, Australia, Canada, South Korea, Taiwan, and most EU nations including Germany, France, Italy, Ireland, and Iceland. Applicants from exempt countries skip the written and/or driving test but still need an appointment for document review and an aptitude test.

Exempt countries: in-person window booking (changed January 19, 2026)

As of January 19, 2026, Kadoma ended phone reservations for exempt-country applicants and switched to in-person window reservations only. This is the change most guides haven't updated for. You must visit Kadoma in person during the reservation window:

• When: Weekdays, 15:30-17:00
• What to bring: Residence card, passport, foreign driver's license, and proof of address
• What happens: Staff check your documents briefly and issue a reservation slip (予約票) with your appointment date. No full document review at this stage -- that happens on the actual appointment day.

This means you'll need to visit Kadoma twice: once to get the reservation, and once for the actual appointment. Plan for a weekday afternoon for the first visit.

Non-exempt countries: phone reservation

If your country is not on the exempt list, you still book by phone. The process:

• Number: 06-6908-9121
• Menu navigation: Press 4 (foreign license), then press 1 or 2
• When to call: The phone line is only answered during limited windows on weekdays. If nobody picks up, try again -- the line does not go to voicemail.

The entire phone system is in Japanese. Here are the phrases you'll need:

外免切替の予約をしたいです。
(Gaimen kirikae no yoyaku o shitai desu.)
-- I'd like to make a reservation for foreign license conversion.

英語で対応できますか？
(Eigo de taiou dekimasu ka?)
-- Can you handle this in English?

予約可能な日はいつですか？
(Yoyaku kanou na hi wa itsu desu ka?)
-- What dates are available?

名前のスペルを言います。
(Namae no superu o iimasu.)
-- I'll spell my name.

If the phone call is a barrier, this is a situation where having a Japanese-speaking friend or helper makes a real difference. The staff are not unkind -- they simply don't have English-speaking operators on the reservation line.

What to bring on test day

Missing a single document means you'll be turned away and need to rebook. Use this checklist:

The 3-month proof is the most common rejection reason. You need passport stamps or other evidence showing you lived in the license-issuing country for at least 3 months after the license was issued. If your country doesn't stamp passports (common in the EU/Schengen area), bring supplementary proof such as a residency certificate from your home country, university enrollment records, or employment documents.

The written test at Kadoma

Since October 2025, the written test went from a quick 10-question illustration quiz to a serious exam. Here's what you're facing:

• Format: 50 true/false text-based questions (no more illustration questions)
• Pass mark: 90% -- that means 45 out of 50 correct. You can only get 5 wrong.
• Languages: Available in approximately 20 languages including English
• Time limit: 30 minutes
• Current pass rate: Roughly 30%, down from over 90% before October 2025

The content is identical to what Japanese residents study for their provisional license (仮免許学科試験). It covers traffic signs, road markings, right-of-way rules, pedestrian protection zones, parking restrictions, highway driving regulations, emergency vehicle procedures, and basic vehicle maintenance.

Watch out for these tricky areas:

• Japanese-specific rules about "temporary stops" (一時停止) at railway crossings -- you must stop, open your window, and listen
• Right-of-way at intersections without signals -- narrower roads yield to wider roads, and vehicles turning left have priority over those turning right
• Parking vs. stopping distinctions -- Japan defines these differently than most countries
• Speed limits in residential zones (30 km/h) and near schools
• Rules about passing on the left (generally prohibited) and when overtaking is forbidden

Where to study: Use practice question sets designed for the post-October 2025 format. The old 10-question practice tests found on many websites are useless. Several driving schools in Osaka offer gaimen kirikae study materials, and sites like DrivingJapan Online and Lease Japan provide updated practice questions in English.

The driving course at Kadoma

Since October 2025, the driving test is scored to provisional-license standards (仮免許 level). The course at Kadoma includes several specific features you need to prepare for:

Scoring: You start at 100 points. Deductions come in 5, 10, or 20-point increments depending on the mistake. Some errors (running a stop sign, hitting a curb, causing a dangerous situation) result in immediate test termination. You need 70 or more points to pass.

Common fail reasons specific to Kadoma:

• Insufficient safety checks (安全不確認): This is the number one reason people fail. Every direction change, lane change, and turn requires a visible mirror check plus a direct head-turn to check blind spots. The examiner watches your head and eyes -- a glance isn't enough.
• Level crossing errors: Forgetting to open the window is an automatic fail. Many foreign drivers have never encountered a level crossing in a test setting.
• Wrong mirror-signal-shoulder check order: The Japanese sequence is rigid: mirror first, then signal, wait 3 seconds, shoulder check, then execute. Doing it in a different order or skipping a step gets deducted every time.
• Driving too slowly (加速不良): Staying well under the speed limit to "play it safe" is penalized. When the course speed limit is 30 or 40 km/h, you're expected to reach it.
• Wide turns: On left turns you must hug the left curb; on right turns you must stay close to the center line. Wide, sweeping turns get deducted.

"I failed twice at Kadoma before passing on my third try. Both times I was told it was safety confirmation -- I thought I was checking my mirrors but apparently I wasn't turning my head far enough for the examiner to see. On the third attempt I exaggerated every head movement and passed with points to spare."

Source: Kansai expat community forum, 2025. Individual experiences vary -- test outcomes depend on examiner assessment and individual preparation.

Practice tip: Kadoma opens its driving course for practice every Saturday (foreigners doing gaimen kirikae can book the actual test course). Sessions are 50 minutes, maximum 2 per day, at 6,000 yen per session plus 400 yen vehicle fee. Reservations are made through the Osaka Traffic Safety Association (06-6909-8040) starting the Monday two weeks before your desired Saturday. Spots fill up fast. You must bring a licensed companion (3+ years experience) and a vehicle with adequate insurance.

Test day timeline

Here's roughly what to expect on the day of your appointment at Kadoma. The exact order may vary, and exempt-country applicants will skip the written and/or driving test portions.

In total, plan for a full day. If you pass both tests, you could be done by early afternoon. If the written test or driving test is on a separate day (which can happen depending on scheduling), each visit takes a half to full day.

Quick FAQ

Can I walk in without a reservation?

No. Since October 2024, Kadoma moved to a reservation-only system for gaimen kirikae. Before that, it was first-come, first-served. If you show up without a reservation, you will be turned away. For exempt-country applicants, you can walk in during the 15:30-17:00 window to make a reservation, but not to take the test itself.

How many times can I retake the tests?

There is no limit on retakes. Each attempt costs 2,550 yen. You will need to book a new appointment for each retake. If you fail only the driving test, you do not need to retake the written test -- your written test pass is valid for that application cycle. Many people take 2-4 attempts on the driving test before passing under the post-October 2025 rules.

Is there parking at Kadoma?

There is a paid parking lot on-site (300 yen for the first hour, 100 yen per 20 minutes after, max 1,000 yen/day), but the Osaka Prefectural Police strongly recommend using public transport. The parking lot is small and regularly full, especially on busy days. You may wait 30+ minutes just to enter. The recommended route is Keihan Main Line to Furukawabashi Station (古川橋駅), then a Keihan Bus to the "Menkyo Shikenjou" (免許試験場) stop -- about 5 minutes by bus, or a 20-minute walk (1.5 km south of the station).

Can I request an interpreter?

Kadoma does not provide interpreters as a standard service. The written test is available in multiple languages, but interactions at the counter -- document review, driving test instructions, result explanations -- are conducted in Japanese. Some applicants have reported that staff will make an effort with simple English, but this is not guaranteed. Bringing a Japanese-speaking companion is the most reliable option.

Related Articles

• Converting Your Driver's License in Osaka? What Changed After October 2025 -- the full pillar guide covering both Kadoma and Komyoike, document requirements, fees, and the complete process
• Convert Foreign License Japan (2026): New Rules + 3-Month Proof -- the national-level guide with country-by-country exemption details

Need a Local to Help You at Kadoma?

The hardest parts of converting your license at Kadoma aren't the tests themselves -- they're the phone call in Japanese, the counter interactions, and figuring out which documents count as "3-month proof." On LO-PAL, you can post a request for free and connect with a local Japanese person in Osaka who can help. They can make the phone reservation for you, accompany you to the center on test day, translate at the document counter, or explain what the examiner said after your driving test. You only pay if you request a task and the helper completes it. Many users post something as simple as "I need someone to call Kadoma and book my gaimen kirikae appointment" -- and get a response within hours.