The Commons and Lords are looking at amendments made to bills currently passing through Parliament, in the process known as ping-pong.
The Scottish government leads a debate on child tax credit cuts and the 'rape clause'.
The European Parliament gives final approval to an EU visa waiver for Ukrainians, due to come into effect in June.
AMs quiz the environment and communities secretaries. There are debates on the 'fourth industrial revolution', the construction industry and local government.
Conservative MP Andrew Tyrie - who has announced he is quitting Parliament - dramatised the increased importance of the Commons select committee system.