Any changes to the arrangement would require potentially complicated constitutional negotiations.

How much so defined much of the lengthy constitutional negotiations and modifications that followed.

Moreover, powers gained by any province during future constitutional negotiations would also have to be offered to the other provinces.

In constitutional negotiations they were able to secure a legislative veto power for the king.

Since 1968 the party has appealed for constitutional negotiations on the matter of provincial sovereignty, in addition to holding two provincial referendums on the matter.