Each assembly plant is completely self contained with its own menu bar across the top of each page. Each assembly plant has its own home, or landing, page. To the left of each assembly plant's landing page is a menu of links to specific section pages within that plant.
The top navigation bar contains links to the various assembly plants. Clicking the assembly plant link will open the home (or landing) page for that plant. Additional relevant links for that plant will appear in the left-most column.
Occasionally a link will open a new window. This is especially true when viewing relevant information on a subject that's applicable to many items. The window can be closed by clicking the red X in the window pane. A new browser window will also open when referencing any external links while connected to the Internet.