President Trump finally unveiled his long-awaited infrastructure plan on Monday.

The 53-page document lays out his vision: To turn $200 billion in federal money into $1.5 trillion for fixing America's infrastructure by leveraging local and state tax dollars and private investment.

"For too long, lawmakers have invested in infrastructure inefficiently, ignored critical needs, and allowed it to deteriorate. As a result, the United States has fallen further and further behind other countries," Trump's message read. "It is time to give Americans the working, modern infrastructure they deserve."

Here's what we know about the president's plan.

How big is it?

The White House says its plan will create $1.5 trillion for repairing and upgrading America's infrastructure.

Only $200 billion of that, however, would come from direct federal spending. The rest is supposed to come from state and local governments, which are expected to match any federal allocation by at least a four-to-one ratio. States have gradually assumed more of the responsibility for funding infrastructure in recent years, and the White House says it wants to accelerate that trend.

"What we really want to do is provide opportunities for state and local governments to receive federal funding when they're doing what's politically hard, and increasing investment in infrastructure," DJ Gribbin, Trump's special assistant for infrastructure, said to the United States Conference of Mayors last month.

However, existing funding sources — such as sales taxes that have already been levied to pay for transit projects — may count towards a local jurisdiction's contribution.

"There will be a lookback provision so that states and local governments who have already recently raised revenues aren't penalized for being forward thinking and implementing the types of policies that we're encouraging through this program," a senior administration official said.

In advance of the plan's release, House Democrats announced their own proposal, which calls for five times the amount of federal funding to be made available.

Related: Trump's $1.5 trillion infrastructure plan rests on some strong assumptions

How would the money be split up?

Half of the new federal money, $100 billion, would be parceled out as incentives to local government entities.

An additional $20 billion would go toward "projects of national significance" that can "lift the American spirit," such as New York's Gateway tunnel under the Hudson River.

Another $50 billion is earmarked for rural block grants, most of which will be given to states according to a formula based on the miles of rural roads and the rural population they have. States can then spend that money on transportation, broadband, water, waste and power projects.

The rest of the money would support other infrastructure-related undertakings, including existing loan programs like the one operated by the Environmental Protection Agency under the Water Infrastructure Finance and Innovation Act, which White House officials said could leverage up to $40 in local and private money for every $1 in federal investment.

Related: America's biggest infrastructure nightmare

What else will the plan do?

The Trump administration says it wants to shorten the time and expense of getting federal permits by consolidating the reviews conducted by different agencies into "one federal decision," with one agency taking the lead on evaluating a project.

The plan proposes to cut federal permitting to two years, down from five to ten. Former President Obama also tried to address the problem through an executive order that instructed agencies to use better technology and work concurrently on their reviews in order to cut down on approval times.

The proposal echoes one made in 2015 by a nonprofit group called Common Good, which recommended limiting litigation around infrastructure permitting — one of the main reasons approvals get delayed — and putting one person in charge of environmental review. Other experts, including the Congressional Research Service, have since cast doubt on the report's claim that trillions of dollars are wasted during the permitting process, pointing out that state regulations, rather than federal ones, are often the cause of delays.

Democrats and progressive groups slammed the permitting provisions in the wake of the plan's release, saying they would erode environmental protections.

"If you want permitting to move faster, you have to invest the resources, the technology, and the expertise in order to speed up the review process," says Christy Goldfuss, senior vice president of energy and environmental policy for the Center for American Progress. "Simply adding new deadlines on nonexistent capacity won't lead to the outcome they're looking for."

The plan also calls for changes aimed at widening the pipeline of skilled construction workers, such as allowing Pell Grants to be used for short-term credentials from places like community colleges and targeting federal work-study funding toward on-the-job training.

Finally, the plan proposes to allow the federal government to quickly and more easily sell assets that it says "would be better managed by state, local, or private entities." As examples of property that could be divested, the plan named the Ronald Reagan and Dulles International Airports, the Tennessee Valley Authority and Bonneville Power Authority's transmission assets, and the Washington Aqueduct, which supplies Washington, D.C. with fresh drinking water.

Related: States see Trump's infrastructure project slipping away

How will the plan be paid for?

At the Conference of Mayors in January, Gribbin explained that the Trump administration would not be proposing a specific funding mechanism for the infrastructure plan, saying that will be a conversation with Congress. But that discussion just got a lot harder following the passage of a tax plan that is expected to expand the deficit by over a trillion dollars over ten years.

The U.S. Chamber of Commerce has proposed hiking the federal gas tax, which hasn't gone up since 1993, to raise $394 billion over 10 years. Gribbin said the White House is open to that idea, but hasn't ruled anything out.

Over the past year, Democrats have accused Trump of seeking to create the $200 billion infrastructure fund by proposing cuts to other infrastructure-related programs. Gribbin committed to leaving major pots of money intact, such as the Highway Trust Fund, but said that some existing spending may be "repurposed."

The White House's budget, which was also released on Monday, proposed a 19% cut to the Department of Transportation, including axing grant programs for transit and other competitive projects proposed by local governments.