When can a logo that does not contain written text be used for advertising?

Using a logo that does not contain written text for advertising can be particularly problematic because it may not adequately convey the necessary information to consumers. Logos without text often lack clarity regarding the brand, service, or professional identity they represent. This is essential in fields such as real estate, where consumers need to clearly understand who they are dealing with.

The rules surrounding advertising often require that all promotional materials include identifiable information that clearly links the advertisement to the professional or business offering the services. Therefore, a logo alone—without any accompanying text—generally would not meet the legal requirements for clarity and transparency necessary in advertising, particularly in regulated professions like real estate. This helps ensure that consumers can make informed decisions based on readily available information.

The other choices suggest scenarios where a logo might be permissible, but they do not account for the overarching requirement for clarity and consumer protection in advertising practices. Thus, using a logo without written text for advertising purposes is not allowed in most cases.