To rely on government regulation rather than a Jewish eyewitness (as described in the Gemorah) is a “heter”.
According to Reb Moshe, one must determine if they are a baalei nefesh before eating non-CY. If they are not a baalei nefesh they can eat non-CY; if they are a baalei nefesh, Reb Moshe tells them to not eat non-CY.