The ceased mulesing option will be culled from the national wool declaration within five months, while the treatment of sheep with liquid nitrogen will be pared back into a single identification code.
The update will override a previous update to the NWD announced in July.
The Australian Wool Exchange revealed the changes in its latest NWD update, which came in response to industry concerns about the complexity and practical implications of the July update.
Under the changes the ceased mulesing status will be cut from the NWD from April 19, 2022 during the Easter recess.
In the meantime CM will remain a valid status for wool declared and received prior to then.
Previously AWEX had flagged the possible removal of ceased mulesing status within two years.
The new liquid nitrogen codes announced in the previous update will be combined into a single code, as opposed to differentiating between producers that had used analgesic and those that hadn't.
The update has also seen the definition of non-mulesed wool clarified to specify that no sheep in the mob have been mulesed or treated with liquid nitrogen.
AWEX CEO Mark Grave said it had received representations from industry over concerns that version 9.0 of the NWD could lead to confusion among producers, as well as over the continued use of the CM status.
"The feedback was the use of CM was becoming confusing... we flagged in July that we would consider the removal of CM in time, but this really brought it to the fore that consideration needed to be given to it because the last thing we wanted was to have a more complicated and confusing declaration," he said.
"We wanted to make sure the fantastic uptake of the NWD was continued and hopefully improved, but also that the document is really clear to understand and implement.
"The mixing of what's happening at mob level, along with what's happening at a property level unfortunately created that confusion.
"Transparency was an important factor in the board's decision- where confusion in completing the NWD exists it could lead to a less transparent declaration."
- Future of 'ceased mulesing' status in doubt
- Freeze branded wool no longer non-mulesed on new NWD
- Debate continues in where to put wool treated with liquid nitrogen on the NWD
Mr Grave said every year AWEX tries to improve and simplify the NWD for both producers and customers of Australian wool and the changes to the liquid nitrogen categorisation were also made in the interest of simplicity
"The interesting thing with liquid nitrogen is we're not sure how much product is out there, how many sheep have been treated with liquid nitrogen and until we start reporting it we won't have a good feel for the issues there," he said.
WoolProducers Australia CEO Jo Hall said WoolProducers had been concerned that the increased number of statuses in the previous version of the document could have led to further complications and even a drop-off in usage.
"To see a more simplified document with less categories is certainly welcomed," Ms Hall said.
"WoolProducers over the last number of NWD reviews have been asking for the removal of ceased mulesing because it's the one category that provides by far the most errors in the documentation and it actually represents such a small volume of wool.
"Again, this is in line with the simplification of the document and we welcome the removal of ceased mulesing as a status."
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The story Ceased mulesing to be cut from national wool declaration first appeared on Farm Online.