Citizens Advice will now also take on responsibility from Consumer Focus for representing consumers' interests in unregulated sectors.
Gillian Guy, chief executive at Citizens Advice, said: "This is good news for consumers. With consumer advice, advocacy and education all under one Citizens Advice service roof, consumers will get a service they know and trust. One that helps them resolve their problem, learn how to avoid similar issues, and get involved in making sure the same thing doesn't happen to other people.
"Citizens Advice has a strong history of advising consumers and championing their problems at a national and local level. We're pleased that this decision will now allow us to do more to help consumers in this way. We will work closely with Consumer Focus and the Government to ensure a smooth transition for the benefit of consumers."
Trading Standards will continue to play a critical role in protecting consumers and businesses, which is why Government is providing increased funding of £10.5m for England, Wales and Scotland to build on local expertise and strengthen mechanisms for cross-boundary working - making it easier to catch unscrupulous traders.
As part of the reforms, a new National Trading Standards Board (NTSB) will bring together representatives of Trading Standards from England and Wales to prioritise, fund and coordinate national and regional enforcement cases.
The NTSB will be responsible for gathering important intelligence from around the country to combat rogue traders, and tackle priorities such as internet scams, illegal money lending and other enforcement issues that go beyond local authority boundaries.
Consumer Affairs Minister, Norman Lamb said: "For too long people have been faced with an array of different bodies for advice and support, but it’s not always clear who to turn to first. The Citizens Advice service will become the publicly-funded voice of consumers, championing their needs and empowering them to make the right choices for themselves.
"There will also be clearer responsibilities and better coordination between enforcers and consumer bodies. A new National Trading Standards Board is exactly what we need to combat priority areas such as loan sharks and internet scams.
"All of the reforms will ensure that we have the right system of help, advice and protection for consumers."
