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CHARLOTTE, N.C. — Friday is your last chance to order free at-home COVID-19 tests from the government. The federal government is ending the free at-home test program this week, citing a lack of funding. 

Many have been complaining about the program saying their tests expire in just a few months. But some say even after those tests expire, they're okay to use. Is that true?

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According to the FDA, many manufacturers have extended the shelf life of their rapid COVID-19 tests. They say the manufacturer provided data showing the shelf life is actually longer than was known when the test was first authorized. 

"The FDA does have a listing of those notifications by-product by the manufacture that you can look up the lot number, and you can extend the shelf life of the product," Dr. Washington said. 

Here is how to look up your lot number.

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Go to the FDA website, look up the home OTC COVID-19 diagnostic test, and scroll to the bottom. You will see many COVID-19 test brands. Look at the box you received, and near the expiration date, there should be a lot number. Check to see if that lot number now has an extended shelf life.

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You can also call the COVID-19 hotline, and they will assist you in finding that lot number and if that expiration date is extended. 

Dr. Washington tells WCNC that if there is no extension date and it is expired, do not use the test. 

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"You want to make sure that you confirm the lot number, but if you can't confirm anything, then I would advise you not to use it," Dr. Washington said. 

If you need more tests, the county is still offering them for free. 

Contact Meghan Bragg at  mbragg@wcnc.com  and follow her on  Facebook ,  Twitter  and  Instagram .

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