January 1, 2008, the term of service of the Director shall be 4 years. A Director may serve more than 1 term. (3) Incumbent The individual serving in the position of Director of the Service on the day before the date of enactment of the Indian Healthcare Improvement Act of 2017 shall serve as Director. (4) Advocacy and consultation The position of Director is established to, in a manner consistent with the government-to-government relationship between the United States and Indian Tribes— (A) facilitate advocacy for the development of appropriate Indian health policy