If you're planning a summer vacation, be aware of coronavirus-related travel restrictions in 15 states — this map shows the rules

But 15 governors have put statewide travel restrictions in place. Some require 14-day quarantines for travelers or a recent negative COVID-19 test.
Many states have begun to reopen outdoor tourist attractions , but many indoor ones remain closed or limit visitor capacity.
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Although all 50 states are reopening to some degree, summer travel plans aren't a go everywhere yet.

Two states Alaska and Maine require a recent negative COVID-19 test for anyone entering.

Twelve states require self-quarantines for incoming travelers: Arkansas, Florida, Hawaii, Illinois, Kansas, Maine, Nebraska, North Dakota, New Mexico, Oklahoma, Pennsylvania, and Rhode Island. However, their rules differ depending on where the travelers are coming from (certain countries or states) and what mode of transportation they're taking (airplane or car).

New York also directs anyone leaving the state to self-quarantine for two weeks when they arrive at their destination.

Arizona, meanwhile, tells travelers not to go to a certain part of the state Navajo Nation, which is seeing record per-capita coronavirus cases.

The map below shows state-by-state travel restrictions and where tourist destinations are open. Blue represents areas that don't have any restrictions in place, while red represents places with state-wide travel rules. In the yellow, restrictions vary by region.

A list of state-by-state travel restrictions

Many states' previous stay-at-home orders prohibited nonessential travel and reserved hotels for essential workers. In Delaware, for example, hotels were only allowed to serve essential workers or vulnerable citizens with no other place to stay from April 6 through May 15. In addition, most states temporarily closed tourist attractions that would ordinarily draw crowds.

Here are the 15 states with some travel restrictions still in place. (States not mentioned below don't have any state-wide policies.)

Alaska: Anyone who comes into the state must produce documentation of a negative COVID-19 test taken 72 hours to five days prior to their departure.
Arizona: Directs travelers to avoid passing through Navajo Nation, which is experiencing a large outbreak.
Arkansas: Requires travelers from New York, New Jersey, Connecticut, and New Orleans, as well as all international travelers, to self-quarantine for 14 days.
Florida: People traveling to the state from New York, New Jersey, and Connecticut are required to self-quarantine for 14 days.
Hawaii: People who travel to or between any of the islands must self-quarantine for 14 days.
Illinois: Requires 14-day self-quarantines for people coming from China, Iran, and Italy.
Kansas: Travelers from New York, California, Florida, Illinois, or Louisiana must quarantine for 14 days.
Maine: Requires travelers from everywhere except New Hampshire and Vermont to either undergo a 14-day self-quarantine or present a recent negative COVID-19 test.
Nebraska: Directs all incoming international travelers to self-quarantine for 14 days.
North Dakota: Directs all incoming international travelers to self-quarantine for 14 days.
New Mexico: Requires all incoming visitors who travel by plane to self-isolate for at least 14 days.
New York: Requires anyone leaving the state to self-isolate at their destination.
Oklahoma: Mandates that individuals traveling from Connecticut, Louisiana, New Jersey, New York, or Washington self-quarantine for 14 days
Pennsylvania: Requires any travelers from areas with "significant community spread" to self-quarantine for 14 days.
Rhode Island: Requires any travelers from areas with "significant community spread" to self-quarantine for 14 days.

In addition, Connecticut strongly urges but doesn't require those entering the state "by any mode of transportation for any reason" to self-quarantine for 14 days.

US federal policy requires all residents who have visited Brazil, China, Iran, the United Kingdom, Ireland, or Western Europe during the previous 14 days to return to the country through one of 13 airports where the government is doing additional screening procedures.

reading museum reopening Ben Hasty/MediaNews Group/Reading Eagle via Getty Images

Which tourist attractions are open

Different types of tourist attractions bring varying levels of risk. In general, the four main risk factors to avoid are enclosed spaces, crowds, close contact with others, and difficulty social distancing.

So uncrowded hiking trails and beaches are less dangerous than, say, an interactive museum.

For that reason, many states have already reopened outdoor tourist destinations. Alabama, Florida, Minnesota, and Missouri have reopened outdoor concert venues, for example, though they're limiting capacity so that visitors can maintain social distance.

Arkansas, Idaho, South Carolina, and Tennessee have opened water parks. Most states have opened beaches, though some, like California and Florida, are letting localities decide.

Washington, DC allows outdoor tourist attractions like historical monuments to be open as well, though indoor ones remain closed.

As for indoor destinations like museums, restaurants, zoos, aquariums some states have left it to counties to decide what to reopen (that's the case in Texas, for example). Others, such as California still have blanket bans on indoor museums and other recreational venues. Museums are reopening, however, in Alaska, Hawaii, Minnesota, New Hampshire, Ohio, and South Carolina.

Under most stay-at-home orders, restaurants were allowed to sell food for takeout and delivery. Now, many states allow restaurants to host dine-in customers, with restrictions. Some states limit diners to outdoor seating, cap the number of patrons inside a space to 25% or 50% of its full capacity, or keep dine-in experiences reservation-only. In Nebraska, for example, restaurants can operate at half capacity. In Florida, outdoor seating areas at restaurants are open, and indoor seating areas can operate at 25% capacity.

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