According to Rule 203 of the AICPA Code of Professional Conduct, GAAP for nongovernment entities include (in a conflict the source earlier in the list prevails): 1. FASB Statements and Interpretations, APB Opinions, ARBs. 2. FASB Technical Bulletins, AICPA Guides and AICPA Statements of Position. 3. Positions of the FASB Emerging Issues Task Force and AICPA Practice Bulletins. 4. AICPA accounting interpretations, FASB staff "Qs and As", and widely recognized industry practices. 5. FASB Concepts Statements, textbooks, articles.