We do this through meetings in the Senedd chamber called Plenary, where Members debate Welsh Government plans and question ministers.
Our committees then focus on aspects of life in Wales, looking at new laws and government policy that affect you.
Our role
We make laws, set taxes and oversee the work of the Welsh Government.
Holding government to account
Overseeing the Welsh Government
We check up on the work and spending of the Welsh Government.
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How laws are made
Making Laws
We make and examine laws that affect us all.
This could be a new law, called a Bill, or making changes to an existing one.
After careful examination and consideration laws are voted on to see if they get approval in the Senedd. If approved it will become an 'Act of the Senedd' and a new law in Wales.
How Welsh taxes are agreed
Agreeing Welsh Taxes
The Senedd, along with the Welsh Government, is responsible for some of the taxes set in Wales.
We check and challenge the work of the Welsh Government in relation to setting tax rates and introducing new taxes.
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How We Work
Find out more about the Senedd and how we work.
History of devolution
Take a closer look at the history of the Senedd and devolution in Wales
Watch Senedd TV
Watch live and archived coverage of Plenary and committees.