JLA is a “self-declaration type” framework that aims to clarify the compatible classes JLA-450 / JLA-425 (space bar length x stabilizer fulcrum span) of the Japanese layout bottom row as a shared language, and to promote the distribution of replacement parts and long-term support.
Individual product examinations are not conducted.
Participation Steps (Shortest)
- Submit the required information via the online application form (at the end of this page).
- Greenkeys (adjustment contact) will contact you regarding publication approval and notation confirmation.
- Registry listing (based on public agreement). Corrections will be made as needed.
- The “JLA-450” and “JLA-425” notation and badge can be used on your company’s website/product page.
Requirements for Self-Declaration
- JLA-450: Approximately 4.5u space bar length x approximately 70mm stabilizer fulcrum span
- JLA-425: Approximately 4.25u space bar length x approximately 60mm stabilizer fulcrum span
- Internal mechanisms, materials, and fixing methods are not questioned (each company’s know-how). Only the “position of the fulcrum (dimensions)” is shared.
- Split spaces (e.g., 2.25u+2.25u, etc.) are not covered (separate category)—not discouraged, but not covered by this alliance.
Notation and Badge
- Class notation is JLA-450 / JLA-425 (both supported is JLA-450/425).
- Please follow the guidelines for badge usage.
- If possible, please link to the JLA page.
- Details will be provided in the badge guidelines.
Policy for Listing on the Participating Organizations Page
- Listing is optional. Inclusion on the ‘JLA Participating Organizations List’ page is granted only if permission is obtained through the application form.
- The listing includes five items: logo, brand name, participation status, JLA class, and official URL.
- The participation categories are Founding / Participating / Review.
- Immediate correction/non-disclosure is supported even after listing.
If the form does not work, please contact us via Contact Us.