US President Donald Trump is expected to take his first steps to scale back financial services regulations on Friday.
He is due to sign an executive order to review the 2010 Dodd-Frank financial regulations, which some people on Wall Street say are overly-restrictive.
The law was brought in after the 2008-09 financial crisis with the aim of avoiding another financial meltdown.
"Dodd-Frank is a disaster," Mr Trump said earlier this week.
He added: "Were going to be doing a big number on Dodd-Frank."
Mr Trump made it a campaign pledge to repeal and replace the Dodd-Frank act, which also created the Consumer Financial Protection Bureau (CFPB).
This US government agency seeks to make sure banks, lenders, and other financial companies treat US consumers fairly.
Dodd-Frank, named after the Congressmen who campaigned for the legislation, was introduced to rein in banks risky practices by banks and other financial companies.
Good move, bad move
But Trump administration officials have said Dodd-Frank did not achieve what it set out to do, and argue that is an example of government being overly-controlling.
News that a review was imminent sent banking shares higher on Wall Street and on the main stock markets in Europe. Goldman Sachs and JP Morgan Chase rose 4% and 2.5% respectively.
"The banks are going to be able to price products more efficiently and more effectively to consumers," Gary Cohn, an adviser to Mr Trump and a former Goldman Sachs executive, told the Wall Street Journal.
Market analyst Jasper Lawler at the London Capital Group said that "unwinding some of Dodd-Frank is a good thing because it will enable smaller community banks to compete, offering competition to consumers."
But he said that scrapping the whole of Dodd-Frank "puts the entire system at risk of a repeat of 2008".
And Swedens minister for financial stability Per Bolund told the countrys TT news agency that a repeal would be "dangerous, harmful and extremely unfortunate".
What is Dodd-Frank?
- The 2010 Dodd-Frank act was introduced to address "too-big-to-fail" banking
- The law forced US banks to reduce their reliance on debt for funding
- Banks had to craft "living wills", or blueprints for winding them down in a crisis
- Dodd-Frank created the Financial Stability Oversight Council
- The Council seeks to identify risks and promote market discipline
- The law also had a big consumer protection element
- It created a new agency, the Consumer Financial Protection Bureau, to oversee consumer financial products
- This gave regulators new powers over large non-bank financial companies
- Dodd-Frank is named after Democrats Christopher Dodd and Barnett "Barney" Frank, who pushed the law through Congress
The executive order will direct the Treasury secretary to consult members of different regulatory agencies and the Financial Stability Oversight Council, and report back on potential changes.
Mr Trump will also sign a presidential memorandum instructing the Labor Department to delay bringing in an Obama-era rule requiring financial professionals to put their clients interests first when giving advice on retirement investments.
The rule, which was set to take effect in April, will be delayed for 90 days while it is reviewed.
The so-called "fiduciary rule" was aimed at blocking financial advisers from steering clients toward investments with higher commissions and fees that can eat into retirement savings.
Critics say the rule limits retirees investment choices by forcing asset managers to steer them to low risk options.
Analysis: Tara McKelvey, White House reporter:
President Trump wants to "do a big number", as he put it, on the Dodd-Frank act, a law that changed financial regulation after the 2008 crisis.
On Thursday evening, a senior White House official told me and other reporters about their plans to examine the act and the regulatory system.
Speaking in the West Wing, the official described Dodd-Frank as "massive government over-reach", and said that an overhaul of the system would empower consumers, giving them a chance to make "independent" financial decisions.
People in the financial industry have welcomed the chance to dismantle Dodd-Frank, and to make other regulatory changes.
So, have bankers been pushing the Trump camp for change? We didnt exactly get a straight answer.
The White House official did tell us, however, that hes confident that theyre giving consumers "what they want."
Mr Trump is also meeting with his business advisory group of senior US executives on Friday.
It will be the first meeting of the Strategic and Policy Forum, a group of executives that includes Jamie Dimon, of banking giant JPMorgan Chase, and Mary Barra chief executive of carmaker General Motors.
Travis Kalanick, the chief executive of ride-sharing service Uber, stepped down from the economic advisory group after strong criticism from staff and the public.
Mr Trump tweeted on Friday: "Meeting with biggest business leaders this morning. Good jobs are coming back to US, health care and tax bills are being crafted NOW!"
Oil and gas rule
Also on Friday, the Senate voted to stop a regulation that would have required oil and gas companies to disclose payments to the US or foreign governments for commercial development.
The House of Representatives approved the measure this week, and Mr Trump is expected to sign it.
Republicans said the regulation gives foreign competitors valuable information about US firms.
Democrats said getting rid of the requirement means big companies will be able to hide questionable dealings with foreign governments like Russia.