Health Service Act (relating to minimum direct care registered nurse staffing requirements). . (f) Federal labor-Management relations (1) In general Section 7106 of title 5, United States Code, is amended by adding at the end the following: (c) Nothing in this section shall preclude enforcement of the provisions of title XXXIV of the Public Health Service Act through grievance procedures negotiated in accordance with section 7121. . (2) Conforming amendment Section 7106(a) of title 5, United States Code, is amended by striking Subject to subsection (b) of this title, and inserting Subject to subsections (b) and (c), . 4. Nurse workforce initiative (a) Scholarship and stipend program Section 846(d) of the Public Health Service Act ( 42 U.S.C. 297n(d) ) is amended— (1) in the section heading, by inserting and Stipend after Scholarship