This publication provides introductory technical guidance for civil engineers and other professional engineers, planners and construction managers interested in siting of air traffic control towers for airports and airfields. Here is what is discussed: 1. GENERAL INFORMATION, 2. SITING CRITERIA, 3. MINIMUM REQUIRED FLOOR LEVELS, 4. SITING PROCEDURES, 5. SITE RECOMMENDATIONS, 6. SOI DISTRIBUTION, 7. SAMPLE SOI, 8. BUILDING RESTRICTION LINES.