This page summarizes the Specified Skilled Worker Type 1 Wood Industry test based on official information from Prometric, the National Federation of Lumber Cooperatives, and the Forestry Agency. To work in wood industry as Specified Skilled Worker Type 1, you need to pass the Wood Industry Type 1 skills test and a Japanese test. If you completed Technical Intern Training Type 2 in Wood Processing (machine sawing work) successfully, a test exemption is available.
For the Wood Industry Specified Skilled Worker (i) Proficiency Test, reservations and schedules are checked on the Prometric Specified Skilled Worker test page. In FY2026, tests are planned in Japan and Indonesia.
Check the latest availability, venues, and dates on the Prometric Wood Industry test page, the schedule page, and the venue list.
The test fee is JPY 4,400 in Japan and IDR 350,000 in Indonesia.
The pass certificate fee is JPY 15,000 and is required when the accepting company applies after you pass.
Check country-specific test fees and payment methods on Prometric's test fee page and payment method page.
You can check the result notice on My Page of the reservation site within 5 business days after the exam.
The result notice is not a pass certificate. After the Specified Skilled Worker employment contract is decided, the accepting company applies to the National Federation of Lumber Cooperatives for the pass certificate.
Check exam information and pass announcements on the National Federation of Lumber Cooperatives exam information and results page.
| Test Name | Wood Industry Specified Skilled Worker (i) Proficiency Test |
| Available Test Languages | Japanese (the Zenmokuren overview says all kanji include furigana) |
| Test Method | CBT Method |
| Test Time | 60 Minutes |
| Number of Questions | 35 questions total (32 written, 3 practical) |
| Passing Criteria | 65% or more of the total score for the written exam and practical exam |
| Written Exam Format | True/False (○× Style) |
| Practical Exam Format | Judgment Test Using Diagrams and Photos |
| Taking the Test Overseas | You must be at least 17 years old on the test day. If you are Indonesian, you must be at least 18 years old. |
| Taking the Test in Japan | In addition to meeting the age requirement, you must have a valid residence status and an eligible passport. |
| Retaking the Exam | You cannot retake the test until 45 days have passed from the day after the test date. |
| Written Exam | Overview of forests, forestry, and the wood industry; wood properties; work safety; use of each product; manufacturing work for each product; machines and equipment used. |
| Practical Exam | It checks the knowledge and judgment needed for real work, such as wood industry work procedures, safety and health, and calculation questions. |
The Zenmokuren exam overview divides the written exam into "General" and "Specialized" and the practical exam into a "Judgment Test." Check the exam scope in the National Federation of Lumber Cooperatives exam overview.
Sample questions are available in the PDF from the National Federation of Lumber Cooperatives. The Forestry Agency publishes the May 2025 study text and multilingual versions in Vietnamese, Indonesian, English, and Thai.
The Zenmokuren reference book page also lists extra materials for sawmilling. If you want to focus on sawmilling, it is worth checking.