Thirteen of the 23 Experimental Law Variations (ELVs) in use in the southern hemisphere will be introduced.
BBC: Law changes trial gets go-ahead
2.
Some other ELVs will be trialled in an unnamed northern hemisphere event.
BBC: Law changes trial gets go-ahead
3.
The ELVs were partially trialled by teams from Australia, New Zealand and South Africa in this year's Super 14, but some northern hemisphere unions have expressed reservations.