This publication provides introductory technical guidance for civil engineers and other professional engineers and construction managers interested in the application of tensioned rock bolts to rock reinforcement for underground structures such as tunnels and dams. Here is what is discussed: 1. GENERAL, 2. ANCHORAGE METHODS, 3. BOLTS AND ACCESSORIES, 4. INSTALLATION METHODS, 5. TENSIONING METHODS, 6. GROUTING OF REINFORCING ELEMENTS, 7. ANCHORAGE CAPABILITY, 8. QUALITY CONTROL, 9. SPECIFICIATIONS