Nepotism
Nepotism, or showing favoritism on the basis of family relationships, is prohibited. A Service employee may not appoint, employ, promote, advance, or advocate for appointment, employment, promotion, or advancement of a relative for a position in the Service. An individual may not be appointed, employed, promoted, or advanced in or to a civilian position in the Service if this appointment, employment, promotion, or advancement has been advocated by a public official, serving in or exercising jurisdiction or control over the Service, who is a relative of the individual.
For more information, see: DOI Ethics Office website: Giving preferential treatment to relatives