The Basics
The standard corporate logotype is always horizontal.
Corporate logotypes should always be seen together, on the same page or as a unit (See Combination System »), with the corporate mark.
Pages 11-12 of the VIG provide examples of the official Signature System detailing how corporate logotypes and the corporate mark are rendered together on a page.
Logotypes typically do not have an exclusion area that must be kept free of objects. Also, there are no restrictions on what kind of background on which a logotype may or may not be placed. However, when in doubt, the provisions for rendering via the Signature System is the recommended method. Optimum visibility should be pursued in all cases.