• IRS• Treasury Department• Office of Tax Policy• DOJ Tax Division• Regulations• Public Rulings• Private Rulings... Actions on Decisions... Appeals Settlement Guidelines... Chief Counsel Bulletins... Exempt Org. Field Memoranda... General Counsel Memoranda... Information Letters... Field Service Advisories... Private Letter Rulings... Technical Advice Memoranda• Electronic Reading Room• AFR• Internal Revenue Manual• Tax Forms and Publications• Statistics• Bureau of Labor Statistics• Census Bureau Statistics• FedStats• GPO Access