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OpenDue June 15, 2026

NOTICE OF INTENT TO SOLE SOURCE: TSI Incorporated Quest Edge 8M Noise Dosimeters (Part Number: TSI 5EG8M-BT-D) and Microphones (Part Number: MIC-EG8)

LABOR, DEPARTMENT OF

About this opportunity

THIS IS NOT A REQUEST FOR PROPOSAL. THIS IS A NOTICE OF THE GOVERNMENT'S INTENT TO ISSUE A SOLE SOURCE CONTRACT TO TSI INCORPORATED TO ASSIST THE U.S. DEPARTMENT OF LABOR'S (DOL), MINE SAFETY AND HEALTH ADMINISTRATION (MSHA), MINE SAFETY AND HEALTH ENFORCEMENT. This effort is to procure TSI Incorporated Quest Edge 8M Noise Dosimeters (Part Number: TSI 5EG8M-BT-D) and Microphones (Part Number: MIC-EG8) that TSI Incorporated has created specifically for MSHA. The TSI Incorporated Quest Edge 8M Noise Dosimeter and Microphone are the only products for this requirement that have received MSHA approval as intrinsically safe for use in underground coal mines. This is a sole source notice published for informational purposes only and not a request for competitive proposals. Therefore, no solicitat...

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