Yes, but the certificate comes with a limitation (color signal landing daytime only proscription; or night and color signal landing proscription). The requirem

Yes, but the certificate comes with a limitation (color signal landing daytime only proscription; or night and color signal landing proscription). The requirements vary depending on class of medical certificate but in this context it's a class I medical for airline transport pilots (not commercial pilots) so it's complicated. Also, full on dichromats or monochromats are rare. Usually people are one of three anomalous trichomats. Hence testing is required to determine if it's a problem. The initial test is designed to have a high failure rate, and the exception tests to get the restrictions lifted take more effort. https://www.aopa.org/go-fly/medical-resources/health-conditions/vision/color-restriction-removal https://www.aopa.org/go-fly/medical-resources/health-conditi...