In addition to tax-compliance-specific Not-for-Profit Section resources, AICPA & CIMA offer other tax resources that you may be interested in. Check out the following items, organized by access level.
Tax Policy & Advocacy Comment Letters
The AICPA Tax Executive Committee, through the work of subject-specific Taxation Technical Resource Panels, publishes comment letters to the IRS, to Treasury, and to members of Congress on matters of interest to AICPA members. The letters are archived by year. Specific exempt organization