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Letter to All Respirator Manufacturers

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Issue Date: March 17, 2009

From: Heinz Ahlers, Chief, Technology Evaluation Branch, National Personal Protective Technology Laboratory

Subject: Extended Testing (Default to Test) Policy

The following is in response to requests for clarification of the NPPTL procedure for selecting tests for extension of approval requests.

Download complete document: Extended Testing (Default to Test) Policy [PDF - 33 KB]