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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices

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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 065 Date of Entry 12/22/2025 
FR Recognition Number 7-348
Standard
CLSI  EP37 2nd Edition
Supplemental Tables for Interference Testing in Clinical Chemistry
Scope/Abstract
This product is a database tool that updates the first edition of the original CLSI EP37 document and converts the guidance into an interactive application. It continues to provide recommended testing concentrations for analytes and endogenous substances that may affect clinical chemistry measurement procedures. This resource is intended to support and fully aligns with the evaluation procedures outlined in the CLSI EP07.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Transition Period
FDA recognition of CLSI EP37 1st Edition [Rec# 7-284] will be superseded by recognition of CLSI EP37 2nd Edition [Rec# 7-348]. FDA will accept declarations of conformity, in support of premarket submissions, to [Rec# 7-284] until December 19, 2027. After this transition period, declarations of conformity to [Rec# 7-284] will not be accepted.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§862.1345 Hexokinase, Glucose Class 2 CFR
§862.1345 Glucose Oxidase, Glucose Class 2 CGA
§862.1345 Glucose Dehydrogenase, Glucose Class 2 LFR
§862.1345 System, Test, Blood Glucose, Over The Counter Class 2 NBW
§862.1345 Prescription Use Blood Glucose Meter For Near-Patient Testing Class 2 PZI
21 CFR 58 Good Laboratory Practice for Non-Clinical Studies
21 CFR 820 Quality Systems Regulations
Relevant FDA Guidance and/or Supportive Publications*
Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contacts
 Douglas Rheinheimer
  FDA/OC/CDRH/OPEQ/OHTVII/DCTD/TB/
  301-796-6157
  douglas.rheinheimer@fda.hhs.gov
 Leslie Landree
  FDA/OC/CDRH/OPEQ/OHTVII/DCTD/DB/
  301-796-6147
  leslie.landree@fda.hhs.gov
 Ying Mao
  FDA/OC/CDRH/OPEQ/OHTVII/DIHD/IMFB/
  301-796-6635
  Ying.Mao@fda.hhs.gov
Standards Development Organization
CLSI Clinical Laboratory Standards Institute https://clsi.org/
FDA Specialty Task Group (STG)
InVitro Diagnostics
*These are provided as examples and others may be applicable.
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