In one section, the committee highlighted comments and suggestions they received in regards to charitable and tax-exempt organizations, and it appears they took the advice (PDF) of the Secular Coalition for America.
MORE: http://www.patheos.com/blogs/friendlyatheist/2013/05/10/congressional-committee-addresses-religious-privilege-in-new-taxation-report/?utm_source=feedly
See also...
Tax Reform: Religious Privileging Issues Included in Joint Committee on Taxation Report
http://secular.org/news/tax-reform-religious-privileging-issues-included-joint-committee-taxation-report
