42 C.F.R. § 493.921 Diagnostic immunology.
Title 42 - Public Health
The subspecialties under the specialty of immunology for which a program may offer proficiency testing are syphilis serology and general immunology. Specific criteria for these subspecialties are found at §§493.923 and 493.927.
Title 42: Public Health
PART 493—LABORATORY REQUIREMENTS
Subpart I—Proficiency Testing Programs for Nonwaived Testing
Proficiency Testing Programs by Specialty and Subspecialty
§ 493.921 Diagnostic immunology.
