To work under SSW Type 1, you usually must pass a Japanese language test and a field-specific skills test. People who successfully completed Technical Intern Training No. 2 may be exempt in the same field, but a skills test may be required for a different field.
Test schedules, test countries, application methods, and exam fees differ by field and country, so always check the latest information on the official page.
In many fields, JLPT N4 or higher or JFT-Basic A2 or higher is required. In many cases, meeting either one is enough.
The skills test differs by field. Check the official page for each field for job content, test scope, number of questions, test countries, and application method.
The following are links to official information and test organizations by field. The linked pages may have newer information than this page.