Money Bills
If the Speaker certifies a Commons bill as a Money Bill the Lords
are given a calendar month to pass the Bill. Though in theory
this does not stop the Lords from amending such bills in the period,
the Commons do not have to consider the Lords amendments. The
committee stage of such bills in the Lords is accordingly almost
invariably negatived.
Consolidation Bills
Consolidation bills do not change the law (unless there are special
recommendations to do so from the Law Commissions). So any amendment
seeking to do so is not in order. In general only amendments
to improve clarity or drafting are admissible.