Submissions are now open again on the Bill (including SOP) up to 29 November 2012. [Link to NZ Parliament site]

Supplementary Order Papers (SOP No.135)  has been released-
Heritage New Zealand Pouhere Taonga Bill 327-1 
and Supplementary Order Paper No 135  are available for download.
Parliamentary web site link for Supplementary Order Papers (SOP No.135)

As yet no announcement has been made when public submissions will be called.