For some research software I have written, I needed some atomic data from NIST. I wanted to put that software onto GitHub (MIT license) but I am not sure if I am allowed to simply also upload the NIST dataset which I need. The NIST copyright page is not too helpful here, it only tells me how to cite the NIST dataset in a paper.
The source code has some comments in it clearly stating the origin of the data, same for a readme file. Would you consider that as enough?