Aviation Law Reader
FreeA web app for reading Japan's Civil Aeronautics Act, its Order and Regulations, and official circulars side by side.
- Follow cross-references between articles
- See amendment history and past versions
- Works offline
Aviation law, written exams and weather information, easier to look up and easier to read. We make tools and books for learning.
See the toolsThe rules and knowledge of aviation are, at heart, very logical. Yet as legal text and exam questions, they can be hard for learners to take in.
aerolumina takes publicly available primary sources, makes them easier to read, and brings them to people aiming to become pilots and to everyone whose work involves the sky.
Our tools currently cover Japanese regulations and exams, and are in Japanese.
A web app for reading Japan's Civil Aeronautics Act, its Order and Regulations, and official circulars side by side.
A website that gathers the primary weather information pilots check before a flight onto one page, in briefing order.
An app for practising the past questions of Japan's pilot written exams, published by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT), with sourced explanations.
Alongside the learning tools, we make books for enjoying the sky and travel at a slower pace. Print editions on Amazon are in preparation.
Line art of Japan's seasonal landscapes and of cats at small airfields, each with an aircraft quietly in the scene. Japanese and English editions.
About the series (Japanese) →For readers aged 9 to 12 (in Japanese). Following a story, readers discover how the sky and the weather work. The first title is about wind.
aerolumina creates apps and information for learning and checking in aviation. We use no non-public information, only publicly available government sources and general knowledge.
For feedback or to report an error, please email info@aeroluminalab.com.
This English text is provided for convenience. If it differs from the Japanese version, the Japanese version prevails.
The apps and websites provided by aerolumina (the "Service") are not affiliated with, created by or endorsed by the Ministry of Land, Infrastructure, Transport and Tourism, the Japan Civil Aviation Bureau, the Japan Meteorological Agency or any other public body, or by any airline. The Service is not official study material.
The weather information, laws and circulars, explanations and all other content of the Service are for study and reference only. Do not use them for flight planning, go/no-go decisions or any other operational decision. For operations, always follow the official sources provided by aviation and meteorological authorities and your operator's procedures.
We work to keep the Service accurate based on publicly available primary sources, but we do not guarantee its accuracy, completeness or currency. Laws, circulars and exam systems may change, and weather information may be delayed in retrieval or display. For the latest official content, consult the original sources such as e-Gov, MLIT and the Japan Meteorological Agency.
The Service supports study for written exams and does not guarantee a pass. For actual exam content and format, follow the announcements of the examining body.
aerolumina is not liable for damage arising from use of, or inability to use, the Service, except in cases of aerolumina's wilful misconduct or gross negligence. For paid services, aerolumina's liability is limited to the amount you most recently paid for that service.
Written exam questions are adapted and displayed from MLIT's published past questions and answers in accordance with the Public Data License (Version 1.0). Weather information is displayed with its source, in accordance with each provider's terms. Except for the texts of laws and circulars, copyright in the explanations, design and other content of the Service belongs to aerolumina.
aerolumina is not responsible for the content of external sites linked from the Service.
The Service may be changed, suspended or ended without notice. This disclaimer may also be revised as needed; revisions apply from the time they are posted on this page.
Established: 13 October 2026