Since at least 1994, various scientists, including those on the EPA’s Clean Air Scientific Advisory Committee, have asked the EPA to “make available the primary data” used in studies for “regulatory decisions” that “have multibillion dollar impacts on society” so that “others can validate the analyses.” The EPA has often resisted and refused these requests using the same arguments as McCarthy and McCabe.
— Read on fee.org/articles/epa-s-lack-of-transparency-is-a-breeding-ground-for-junk-science/

Outcome based studies and research are the coin of the realm.