Which of the following is a cause for disciplinary action under NRS 489.401?

Deceptive practices and misrepresentation is indeed a cause for disciplinary action under NRS 489.401. This provision is intended to ensure that all manufactured housing professionals adhere to ethical practices and maintain a standard of honesty, as misrepresentation can lead to a loss of trust and can harm consumers in significant ways. It encompasses activities that present false information, either about the products being sold, the services being provided, or the qualifications of the professionals involved.

While failure to pay taxes, unsafe working conditions, and incompetent work may reflect poor business practices and can lead to regulatory or legal issues, they do not specifically fall under the same framework of deceptive practices mandated by this statute. NRS 489.401 is particularly focused on protecting consumers from falsehoods that could mislead them, thus emphasizing integrity in the industry over other violations that, while serious, might not directly involve misrepresentation.