The Obama administration released a warning Monday telling the nation's landlords that it may be discriminatory for them to refuse to rent to those with criminal records.

The Fair Housing Act doesn't include criminals as a protected class, but the Department of Housing and Urban Development (HUD) says refusing to rent based on a criminal record is a form of racial discrimination, due to racial imbalances in the U.S. justice system.

The Obama administration is engaged in a broad push to make more home loans available to people with weaker credit, an effort that officials say will help power the economic recovery but that skeptics say could open the door to the risky lending that caused the housing crash in the first place.

President Obama's economic advisers and outside experts say the nation's much-celebrated housing rebound is leaving too many people behind, including young people looking to buy their first homes and individuals with credit records weakened by the recession.

In response, administration officials say they are working to get banks to lend to a wider range of borrowers by taking advantage of taxpayer-backed programs — including those offered by the Federal Housing Administration — that insure home loans against default.

Housing officials are urging the Justice Department to provide assurances to banks, which have become increasingly cautious, that they will not face legal or financial recriminations if they make loans to riskier borrowers who meet government standards but later default.

The administration's efforts come in the midst of a housing market that has been surging for the past year but that has been delivering most of the benefits to established homeowners with high credit scores or to investors who have been behind a significant number of new purchases.

"If you were going to tell people in low-income and moderate-income communities and communities of color there was a housing recovery, they would look at you as if you had two heads," said John Taylor, president of the National Community Reinvestment Coalition, a nonprofit housing organization.