5 C.F.R. § 2638.102
Consistent with the fundamental principle that public service is a public trust, every employee in the executive branch plays a critical role in the executive branch ethics program. As provided in the Standards of Conduct at part 2635 of this chapter, employees must endeavor to act at all times in the public's interest, avoid losing impartiality or appearing to lose impartiality in carrying out official duties, refrain from misusing their offices for private gain, serve as good stewards of public resources, and comply with the requirements of government ethics laws and regulations, including any applicable financial disclosure requirements. Employees must refrain from participating in particular matters in which they have financial interests and, pursuant to § 2635.402(f) of this chapter, should notify their supervisors or ethics officials when their official duties create the substantial likelihood of such conflicts of interest. Collectively, the charge of employees is to make ethical conduct the hallmark of government service.
5 C.F.R. §2638.102