| SI.N | Code book used (Description) | IS Code number |
|---|---|---|
| 1695 | National Building Code of India 2005 - Group 1 | |
| 1696 | National Building Code of India 2005 - Group 2 | |
| 1697 | National Building Code of India 2005 - Group 3 | |
| 1698 | National Building Code of India 2005 - Group 4 | |
| 1699 | National Building Code of India 2005 - Group 5 | |
| 1700 | Reconstituted National Building Code of India 2005 - (Group 1 to 5) |