5 U.S.C. § 3327

1. (a)The Office of Personnel Management shall provide that information concerning opportunities to participate in competitive examinations conducted by, or under authority delegated by, the Office of Personnel Management shall be made available to the employment offices of the United States Employment Service.
2. (b)Subject to such regulations as the Office may issue, each agency shall promptly notify the Office and the employment offices of the United States Employment Service of—As used in this subsection, “agency” means an agency as defined in section 5102(a)(1) of this title other than an agency all the positions in which are excepted by statute from the competitive service.
   1. (1)each vacant position in the agency which is in the competitive service or the Senior Executive Service and for which the agency seeks applications from persons outside the Federal service, and
   2. (2)the period during which applications will be accepted.
3. (c)The Office of Personnel Management may authorize the Department of Defense to use flexible outreach methods, including curated prospect sourcing, provided that all hiring opportunities remain publicly accessible and merit-based.