If I change engine my car (405 gr) by use the old engine from another car.
1.How do I do about How to inform the transportation section?
- What the documents which I must request from the owner of another car?
2. If I change engine this week and next week I will install gas (LPG).
- Can I inform both 1 time together to the transportation section? (change engine No. and Install gas)

ICQ :

Thange You Very Mush. (English)
Domo Arigato Gozaimasu (Japan lanqauge)
................................... (France Lanquage)

Document of old car,Owner's ID card,Owner's house ID. After you change the engine. You can install gas and give all the documents to Transportation Department at the same time.

Don't forget buy&sell agreement for old engine.