Urgent amendment to Compliance Document B1
Pursuant to sections 24(1) and 29(5) of the Building Act 2004 ("the Act"), I give notice of an urgent amendment to the compliance document for New Zealand Building Code clause B1 Structure ("Compliance Document B1").
The amendment modifies the verification method for structure ("B1/VM1") and the acceptable solutions
for structure ("B1/AS1 and B1/AS3") to take account of recent changes to the seismicity of the area contained within the boundaries of Christchurch City Council, the Selwyn District Council and the Waimakariri District Council
("the Canterbury Earthquake Region").
Specifically, the amendment modifies the applicable:
- seismic hazard factor;
- seismic zone;
- definition of "good ground";
- bracing requirements; and
- requirements to ensure that concrete slabs on the ground are reinforced and tied to perimeter foundations.
The urgent amendment to Compliance Document B1 comes into force on 19 May 2011 ("the effective date").
Compliance Document B1 is available for download free of charge from the Department of Building and Housing (DBH) website at
In accordance with section 30(2) of the Act, the Chief Executive of DBH will consult on, and publicly notify whether she has decided to make, this urgent amendment within six months of the date of this notice.
New material incorporated by reference
As part of this urgent amendment, and pursuant to sections 405 and 410(1)(e) of the Act, I give notice that the following material will be incorporated by reference into the Compliance Document B1 effective on 19 May 2011:
NZS 3604:2011 (Section 5)
Consultation on this incorporation by reference will be carried out as part of the consultation under section 30(2) of the Act.
The material incorporated by reference relates to matters referred to in section 410(1)(c) of the Act.
Purchase of material incorporated by reference
The material incorporated by reference described above may be purchased directly from Standards New Zealand, Radio New Zealand House, Level 10, 155 The Terrace, Wellington, or online at
Copies of material incorporated by reference are also available for purchase through all of DBH's offices, at the locations specified below.
Viewing materials incorporated by reference
Materials incorporated by reference are available for inspection free of charge at all of DBH's offices, at the locations specified below, between the hours of 8.30am to 5.00pm, Monday to Friday.
DBH office locations
The DBH office locations are as follows:
- National office in Wellington: Level 6, 86 Customhouse Quay.
- Auckland office: Level 3, 41 Shortland Street.
- Manukau office: 7 Ronwood Avenue.
- Hamilton office: 2nd Floor, 36 Bryce Street.
- Christchurch office: Level 2, 10 Nelson Street.
- Porirua Tenancy Services Centre: 1st Floor, 1 Walton Leigh Avenue.
DBH also has tenancy service delivery locations in:
Whangarei, Henderson, Takapuna, Tauranga, Rotorua, Gisborne, Napier, New Plymouth, Palmerston North, Lower Hutt, Nelson, Blenheim, Greymouth, Timaru, Dunedin and Invercargill.
To make an appointment at one of these locations to
view or purchase material incorporated by reference, call freephone 0800 242 243.
Dated at Wellington this 19th day of May 2011.
DAVID KELLY, Deputy Chief Executive, Building Quality, Department of Building and Housing.