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# Testing Supply Substitution Strategies
- URL: https://www.fdaweb.com/testing-supply-substitution-strategies/
- Published: 2020-06-04T12:00:00.000Z
- Updated: 2026-09-14T16:17:13.000Z
- Author: David McFarland
- Tags: Devices, #legacy-id-D5146931

FDA has issued a PowerPoint presentation, *Testing Supply Substitution Strategies*, describing a new Web resource for labs performing Covid-19 tests that are authorized. The [slide show](http://www.fda.gov/media/138548/download?ref=fdaweb.com) says the resource includes validated supply alternatives that labs can use to continue performing testing when there is a supply issue with some test components.

“The information in this resource is not intended to alter any already issued EUA (emergency use authorization) for a Covid-19 diagnostic test nor is it intended to speak to any specific FDA regulatory requirement,” the show says. “Rather, the information is being provided to help address availability concerns regarding certain critical components of Covid-19 diagnostic tests during this pandemic.”