Clause 2.1 HS or NS Form Clause 2.2 Size of HS Clause 2.3 Wall and Slab Thickness of HS and NS Clause 2.4 Location of HS Clause 2.5 HS Door Clause 2.6 Precast Hollow Core Household Shelters (Precast HS) Clause 2.7 Fixtures in HS Clause 2.8 NS in HS Tower Clause 2.9 Transfer Structure Supporting HS Tower Clause 2.10 HS Beneath An Internal Staircase Clause 2.11 Finishes in HS Clause 2.12 Exit Staircase Clause 2.13 Door Recess on HS Wall