NEW YORK (CNNMoney.com) -- As loan servicers scramble to implement President Obama's foreclosure prevention plan, the administration on Thursday unveiled a Web site to assist homeowners in determining whether they are eligible for help.

Obama rolled out his $75 billion foreclosure prevention program on Feb. 18, saying it would begin two weeks later when financial institutions received the guidelines.

The two-part Obama plan calls for servicers to reduce monthly payments to no more than 31% of eligible borrowers' pre-tax income or to refinance eligible mortgages even if the homeowner has little or no equity. It also provides thousands of dollars in incentives for servicers and borrowers to participate.

Servicers, however, are still updating their systems to process modification and refinancing applications. And they are waiting for clarification on a few points of the president's plan.

It could be weeks before borrowers learn whether they qualify for either program. Many have complained about being turned away by their servicers.

Administration officials reiterated the need for borrowers to be patient as the servicers work to implement the program. The nation's four major servicers -- Citigroup (C, Fortune 500), Bank of America (BAC, Fortune 500), JPMorgan Chase (JPM, Fortune 500) and Wells Fargo (WFC, Fortune 500) -- have said they would participate.

"They are moving as fast as humanly possible," a senior administration official said Wednesday in a discussion about the government's new Web site.

The site can be found at makinghomeaffordable.gov.

Some financial institutions, while still not processing applications, are encouraging borrowers to contact them and submit their paperwork. That way homeowners can learn whether they qualify soon after the systems are in place.

Bank of America, for instance, is collecting borrowers' information. If it's clear they aren't eligible for the Obama plan, the bank looks to help them through one of the other loan modification programs already underway. If they might qualify for the president's program, Bank of America is compiling taking down names for future follow-up.

"As soon as we're ready, we'll make calls to the people who've already contacted us," said Rick Simon, a Bank of America spokesman.

Citigroup, meanwhile, is already modifying mortgage payments to no more than 31% of borrowers' monthly income, as part of its November bailout from the federal government.

"We anticipate that the modifications we are making will qualify under the Obama plan once the details are finalized," said Mark Rodgers, a Citigroup spokesman.

Servicers are encouraging borrowers to collect the financial information needed to determine eligibility.

"We're also asking our customers to gather the necessary documents so that when our systems are up and running, we can begin quickly to help those who will likely qualify," said a Wells Fargo spokeswoman.

The administration's new Web site helps homeowners determine whether they might qualify for either a loan modification or refinancing. It also provides links to finding government-approved housing counselors and warns people to avoid foreclosure rescue scams.

Borrowers can answer a set of questions to learn whether they could benefit from either the Obama modification or refinancing programs. The loan modification interactive tool, for instance, asks whether the borrower lives in the home, has a mortgage of less than $729,500 that was originated before Jan. 1 and is having trouble making payments.

The site also helps homeowners determine whether their monthly payments are more than 31% of their pre-tax income. And it gives an estimate of how low their new payment might go under the plan. For example, if you earn $4,000 a month and pay $1,400 a month, you could see your payments drop to $1,240 under the modification plan.

The refinancing tool, meanwhile, provides links to Fannie Mae (FNM, Fortune 500) and Freddie Mac (FRE, Fortune 500) that let borrowers determine whether they have loans held by either mortgage finance company, a key eligibility criteria.

Borrowers will also find a checklist of financial documents -- including pay stubs, tax returns and credit card statements -- that they will need to present when applying for the program.

The administration estimates that its foreclosure prevention fix will help up to nine million homeowners.

"We want to encourage as many eligible borrowers as possible to take advantage of our program," said a senior administration official. "This site encourages borrowers to investigate if they are eligible for one or both programs."