US lawIllinoisRegulationsTitle 77 — PUBLIC HEALTHCHAPTER I: DEPARTMENT OF PUBLIC HEALTHSUBCHAPTER b: HOSPITALS AND AMBULATORY CARE FACILITIESPart 250 — HOSPITAL LICENSING REQUIREMENTSSubpart E250.55077 Ill. Adm. Code 250.550Western Blot Assay Testing Procedures (Repealed)Last amended: 1994Year: 2026Length: 10 wordsOfficial source Section 250 Section 250.550 Western Blot Assay Testing Procedures (Repealed)Previous77 Ill. Adm. Code 250.540