While the draft code does not immediately ban the use of crates and stalls, it does propose new limits for the amount of time they can be used post mating/farrowing and proposes to prohibit the use of sow stalls for all use after a date to be determined after the consultation process.
Accordingly, the draft code contains standards that:
• limit the use of farrowing crates to four weeks post-farrowing from the date the code is issued
• limit the use of dry sow stalls to four weeks post-mating after 31 December 2012
• prohibit the use of dry sow stalls at a date to be determined following the consultation process
http://www.biosecurity.govt.nz/media/03-03-10/draft-code-of-welfare-for-pigs