a group of representatives in the government of a US state or in Congress which writes tax laws. its full name is the United States House Committee on Ways and Means.
From Longman Business Dictionary
Ways and Means CommitteeˌWays and ˈMeans Comˌmittee nounECONOMICSORGANIZATIONS
a group of people in the US government whose job is to find methods of raising money for the work that the government wants to do
The Ways and Means committee will vote on the proposals this afternoon.