State Operations Manual (Pub. 100-07), Ch. 5 § 5500.4
Scheduling Investigations
5500.4 - Scheduling Investigations
(Rev. 234; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25)
The SA investigates complaints involving possible immediate jeopardy (IJ) within three
working days of receiving the complaint and focuses on the specific problem area. The
SA should notify CMS of a possible IJ complaint. Otherwise, the SA follows
procedures for prioritizing and investigating certification-related complaints within 45
days. Laboratories with complaints pending are identified and given priority in
scheduling of regular certification surveys.