Three top Democrats are accusing the Department of Housing and Urban Development of quietly removing a key clause in its requirements for taxpayer-guaranteed mortgage insurance in order to spare two banks recently convicted of federal crimes from being frozen out of the lucrative market.

HUD’s action is the latest in a series of steps by federal agencies to eliminate real-world consequences for serial financial felons, even as the Obama administration has touted its efforts to hold banks accountable.

Sens. Sherrod Brown and Elizabeth Warren and Rep. Maxine Waters fired off a letter to HUD on Tuesday, saying they believe that the timing of the change was designed to clear the way for two banks recently convicted of federal crimes — JPMorgan Chase and Citigroup — to continue to make Federal Housing Administration-insured loans. Last year, JPMorgan Chase wrote $1.67 billion in FHA loans, and Citi wrote $342 million, according to data from the Congressional Research Service.

On May 20 of this year, JPMorgan Chase and Citigroup both entered a guilty plea on one felony count of conspiring to rig foreign currency exchange trades, the largest market on the globe.

On the current HUD-92900-A form, lenders must certify that their firm and its principals “have not, within a three-year period … been convicted of or had a civil judgment rendered against them” for a variety of crimes, including “commission of fraud … violation of Federal or State antitrust statutes or commission of embezzlement, theft, forgery, bribery, falsification or destruction of records, making false statements or receiving stolen property.”

JPMorgan and Citi’s guilty plea would fall under the antitrust statute, and according to Brown, Warren and Waters’ reading of the certification, that would make them ineligible to obtain FHA insurance on their loans.

On the updated form, this language has been excised. The notice in the Federal Register did not even mention the removal, making it impossible to discover without comparing the old form and the proposed form side by side. The Wall Street Journal ran a story about the certification changes in May, but failed to notice that the new language would let law-breaking banks off scot-free.

The day before HUD released the notice in the Federal Register, the New York Times reported that the Justice Department sought to lessen the consequences of the guilty pleas in the foreign exchange rigging case, ensuring that federal regulators would not use the pleas to bar banks from certain business lines.