This is very odd, and, one hopes, it is simply the product of just bad writing:  NEH summer stipends may not be used for "projects that seek to promote a particular political, philosophical, religious, or ideological point of view."  Won't this prevent most philosophers from applying, unless they're writing a survey piece?  One assumes that, given the list, by "philosophical" they mean something closer to "political" and "ideological," and not someone proposing to defend four-dimensionalism or compatibilism or epistemic internalism (imagine the controversy in Congress if some Senator gets wind that the NEH is funding work in support of internalism!  The externalist Senators will go wild).

(Thanks to Alex Hughes for the pointer.)