U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 42Chapter IVPart 493Subpart H - Subpart H—Participation in Proficiency Testing for Laboratories Performing Nonwaived Testing
View all text of Subpart H [§ 493.801 - § 493.865]
§ 493.833 - Condition: Diagnostic immunology.

The specialty of diagnostic immunology includes for purposes of proficiency testing the subspecialties of syphilis serology and general immunology.

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