It's right here (LINK)"Airlines must confirm the negative test result for all passengers or
documentation of recovery before they board" (emphasis added).
It's also here (LINK)"you may travel instead with
documentation of your positive viral test results and a letter from your healthcare provider or a public health official that states you have been cleared for travel. The positive test result and letter together are referred to as “documentation of recovery” (emphasis added).
(Positive test with my name on it is dated early December.)
