Hong Kong Regulations- CHAPTER 520A TABLE OF PROVISIONS 1. section 2. Interpretation 3. Traffic control 4. Traffic signs, light signals and road markings 5. Communication 6. Recovery and rescue 7. Air quality and ventilation 8. Order and cleanliness, etc. 9. Illumination 10. Electricity supply 11. Control of dangerous goods 12. Adequate manning requirements 13. Display of notices of tolls and sale thereof 14. Records on tunnel operation 15. Records on tunnel maintenance 16. Uniforms and identification[ Note: This table has been automatically generated and may be incomplete. ]