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Letters to Manufacturers and Interested Parties

NIOSH Respiratory Protective Device Information banner

Guidance documents developed to inform respiratory protective device users.

NIOSH Conformity Assessment Notice banner

Document developed to provide information to NIOSH approved respirator users (formerly called user notices), to inform stakeholders about changes in a test procedure or the NIOSH CA process, revocations (formerly referred to as letters to interested parties). The document developed to reaffirm a NIOSH CA process or procedure.

CA 2018-1003 – NIOSH Use of a Personal Computer (PC) Based System, Microsoft Windows and National Instruments’ LabVIEW™ Data Acquisition Software to replace use of the Gould RS3200 Strip Chart Recorder beginning June 15, 2018

CA 2018-1002 – Intra-Laboratory Comparison of LabVIEW™ Data Acquisition Software to replace use of the Gould RS3200 Strip Chart Recorder

NIOSH Conformity Assessment Interpretation banner

An explanation of a course of action or position adopted and pursued by NIOSH/NPPTL that directly affects its stakeholders such as interpretations of and changes to the respirator approval process or requirements.

NIOSH Conformity Assessment Letter to Manufacturers banner

Documents formerly referred to as Letters to All Manufacturers.

CA 2018-1001 – Issue Affecting Chemical Warfare Agent (CWA) Testing for NIOSH CBRN Respirator Approvals

NIOSH Conformity Assessment Meeting banner

A meeting announcement to advertise date, time and attendance instructions for interested parties.

CA 2018-1004 – Meeting with Respirator Manufacturers, August 7, 2018, 9AM – 2PM EST, NIOSH Pittsburgh Facility, Building 140 Multipurpose Room

Below are letters issued to respirator manufacturers and letters issued to all interested parties:

Letters Issued to Respirator Manufacturers

Letters Issued to Respirator Manufacturers - CBRN

Letters to Issued to All Interested Parties

Letters to Issued to All Interested Parties - CBRN

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