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| Air Navigation Obstruction and Hazards Control |  |
| To view the documents, you need |  . |
| Task | Form No. | Download Form | View/Apply Online | | Apply for Balloon Hoisting | |  |  | | Apply for Balloon Release | | | | | Apply for Erection of Cranes & Tall Construction Equipment | | | | | Apply for TOP / CSC Clearance | | | | | View Building Height Restriction Map | | | | | | | | |
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