Which of the following is excluded from the definition of mobile homes?

The correct choice emphasizes that recreational park trailers and travel trailers fall outside the definition of mobile homes as established by Nevada law. Mobile homes are defined specifically as residential structures that are built to be transported, while recreational park trailers and travel trailers are designed for temporary or seasonal use, not as permanent residences. This distinction is crucial because mobile homes have different legal and regulatory frameworks compared to trailers meant for recreational purposes.

In contrast, the other options refer to structures that could potentially be classified differently under housing regulations. Permanent homes are essentially another term for residences that are not mobile; single-family houses typically imply traditional homes built on a foundation, which do not meet the mobile home criteria due to their fixed location. Commercial buildings also differ significantly from mobile homes, as they serve a totally different purpose and are subject to other regulations within the construction and housing sectors. Therefore, the exclusion of recreational park trailers and travel trailers is significant and well-defined, aligning with the regulations governing manufactured housing in Nevada.