Prior to the start of the 2012−13 Session, the Select Committee had seven sub-committees. At the start of the May 2012 parliamentary session, the Select Committee restructured its sub-committees, eliminating the previous Sub-committee G (Social Policies and Consumer Protection) and revising the remits of the remaining six sub-committees. Shortly after the United Kingdom's
withdrawal agreement with the EU went into effect in January 2020, the sub-committees were further reduced to five, merging the previous six sub-committees into four, and adding an International Agreements sub-committee. The International Agreements sub-committee was re-established as the separate
International Agreements Committee in January 2021. The final sub-committees were as follows: ;Environment The EU Environment Sub-committee examined the European Union's policies regarding the environment as well as agriculture, energy, climate change, food, fisheries, biosecurity, and overall public health. In addition, it considered the environmental impact of the UK−EU
level playing field. ;Goods The EU Goods Sub-committee considered the European Union's policies and legislative proposals, as well as ongoing negotiations between the United Kingdom and the European Union, regarding future trade in goods (including customs), level playing fields, consumer protections, public procurement and transport. ;Security and Justice The EU Security and Justice Sub-committee considered the United Kingdom's future relations with the EU regarding internal and external security, including criminal justice, policing, data-sharing, and defence. ;Services The EU Services Sub-committee considered policies related to the United Kingdom's relationship with the European Union in the areas of trading in financial and non-financial services, as well as science, education, and culture. ==External links==