Editor's Note — This story was updated in its entirety on April 9 and will be updated periodically. However, you should still check with the official state websites before you commit to travel plans. Top photo: South Boundary Avenue in Aiken, South Carolina. Forrest Brown / CNN
(CNN) — Total cases of Covid-19 have reached past the 31.1 million mark in the United States. Though some states continue to enforce travel restrictions and quarantines, in general more states have been moving toward looser restrictions or none at all in recent weeks. The situation remain in flux, though. The Centers for Disease Control and Prevention still warns against nonessential travel at this time. If you do decide to travel to another state, it is vital that you stay updated on the latest statewide regulations, including the latest guidelines regarding fully vaccinated travelers. On April 2, the CDC released new guidance for domestic travelers who have been fully vaccinated with an FDA-authorized vaccine. Fully vaccinated travelers do not need to self-quarantine, and they don't need to test negative before or after their travels unless the destination requires it.
Even if some US states have no restrictions on allowing leisure travel, all their official websites have important Covid-19 safety information. For instance, some states still have mandates on face masks in public settings.
This list is alphabetical and includes links to state websites that have important details you should read before you cross state lines:
Alabama's Gulf State Park features two miles of white-sand beaches and an extensive dunes system.
Courtesy Gulf Shores & Orange Beach Tourism
As of April 9, there were no statewide travel restrictions in Alabama. However, visitors should be aware of the state's mask mandate, as it applies to travelers, too. It's effective through May 5 (though it's been extended numerous times). You can check here for updates.
Venice Beach is one of Los Angeles' most colorful neighborhoods.
UPDATE: Almost all of California is open to out-of-state visitors again. People are encouraged but not required to self-quarantine upon entering the state. All restrictions except those on conventions of more than 5,000 people are expected to be lifted by June 15. Would-be visitors are advised by the state to call ahead for possible local restrictions, and you can click here to find out local travel information. You can check here for updates on California more generally.
Oakland Cemetery is about a mile from downtown Atlanta. It's the city's oldest public park and particularly popular in spring when the heirloom daffodils, azaleas, dogwoods and other flowers are in bloom.
Forrest Brown / CNN
Hawaii has had an evolving set of travel requirements. You should read them thoroughly before you plan a trip and check often for updates.
Travelers 5 and older who want to bypass the 10-day mandatory quarantine must have their negative Covid-19 test results -- from a trusted testing partner -- taken within 72 hours of the final leg of departure. You must upload your negative test result to the Safe Travels system before you leave or, as an alternative to uploading, bring a hard copy of a negative test result before boarding your flight. For more information, check here.
As of April 9, there were no statewide restrictions in Illinois, but visitors heading to Chicago have been placed in two categories -- orange and yellow. People from an orange state must quarantine for 10 days unless they have a negative Covid-19 test result no more than 72 hours old or have been vaccinated and meet inoculation guidelines. Travelers coming from a yellow state do not need to quarantine or take a prearrival test, but they are asked to wear a mask and social distance.
The impressive Iowa State Capitol in Des Moines is open for tours. Call ahead for hours, which may change because of the pandemic.
While mostly open, Kansas has some rather specific quarantine requirements subject to frequent change. Check here for updates and more details.
Out-of-state leisure travel is discouraged, but Kentucky has no official travel restrictions. If you decide to go anyway, the state asks you to self-quarantine for 14 days. Read Kentucky's travel advisory here.
The waterfront in Portland, Maine, has many leisure boats, wharves and fishing businesses.
Travelers must quarantine for 10 days upon arrival or fill out a travel protocol form stating they've received a negative Covid-19 test within 72 hours. You may also get tested upon arriving in Maine but must quarantine while awaiting results. Residents of Connecticut, Massachusetts, New Hampshire, Rhode Island and Vermont are exempt. Travelers who are fully vaccinated are also exempt. Starting May 1, all states will be exempt unless determined otherwise by the Maine CDC. Check here for updates.
As of April 9, there were no statewide travel restrictions in Maryland. Travelers are still strongly encouraged to wear masks. Find out more at VisitMaryland guide.
All visitors, including residents, are asked to quarantine for 10 days upon arrival. Travelers who have a negative Covid-19 test up to 72 hours before arrival are exempt. Visitors may also test once they arrive in the state, but are asked to quarantine until they receive a negative result. For more exemptions and updates, check here.
The Stone Arch Bridge crosses the Mississippi River in downtown Minneapolis.
Dan Anderson/Courtesy of Meet Minneapolis
Steaks on grill at Johnny's Cafe in Omaha, Nebraska. Johnny's opened back in 1922.
As of April 9, there were no statewide travel restrictions in Nebraska. International travelers have Covid-19 testing and quarantining requirements, which can be found here.
Domestic visitors to New Hampshire no longer need to quarantine or take a Covid-19 test to travel to New Hampshire, but it is still recommended to get tested three to five days after arrival. However, people who have had traveled internationally within 10 days of arriving in New Hampshire or have been on a cruise ship do need to follow testing and quarantine protocols unless they meet certain exceptions. Check here for important details.
Tourism is discouraged. Travelers from anywhere other than New York, Connecticut, Pennsylvania and Delaware should self-quarantine at their home, hotel or other temporary lodging with the following in mind:
-- If travel is unavoidable, you should consider getting tested with a viral test (not an antibody test) one to three days before the trip and again three to five days afterward.
-- If you test negative, you should quarantine for seven days after travel.
-- If testing is not available or results are delayed, you should quarantine for 10 days after travel.
-- You're requested to fill out a voluntary online survey.
Before you visit places such as Taos Pueblo in New Mexico, you'll have to follow quarantine restrictions.
People traveling from out-of-state are recommended to self-quarantine for 10 days or the length of their stay in New Mexico, whichever is shorter. Exemptions from low-risk states are allowed, but currently, only Hawaii is deemed low risk. Check here for updates.
As of April 1, the quarantine protocols on domestic travel to New York were lifted. People are still asked to fill out a New York state traveler heath form unless coming from a bordering state. International travelers are still required to quarantine for seven days with a negative Covid-19 test three to five days after arrival or 10 days with no test. You can check here for crucial details.
The Cape Hatteras Lighthouse is a beloved symbol of the Outer Banks.
As of April 9, there were no statewide travel restrictions in North Carolina. Check here for updates and details.
Cleveland is Ohio's second-largest city and is home to impressive museums and gardens.
Courtesy Destination Cleveland
As of April 9, there were no statewide travel restrictions in Ohio. The state encourages travelers to follow CDC guidance. Check here for details.
People arriving in Oregon from other states or countries, including returning Oregon residents, are encouraged to self-quarantine for 14 days after arrival. Nonessential travel, which includes tourism, is discouraged. Check here for updates and details as well as exemption requirements. Oregon also has a county-by-county risk assessment map you can check before you travel.
To visit this US commonwealth, you need a negative result from a Covid-19 molecular test taken within 72 hours before arrival. If you come without a test result, you must self-quarantine for 14 days or the duration of the trip, whichever is shorter. You must also fill out an online travel declaration form. Please check here for details and updates.
Providence is a foodie town. And Knead Doughnuts is still offering its delicious treats during the pandemic.
Courtesy Knead Doughnuts
Those traveling to Rhode Island from a state that has a positive testing rate of 5% or more must quarantine for 10 days. Travelers can opt out of the quarantine if they can provide proof of a negative Covid-19 test taken within 72 hours of their arrival. This exception does not apply to international arrivals. You can check that list of states here. Those waiting on test results must self-quarantine until a negative test result arrives. You must also fill out a certificate of compliance and a travel screening form. If it's been at least two weeks since your final Covid-19 vaccine and you are not showing symptoms, you do not need to quarantine. If you've tested positive for Covid-19 in the past 90 days and finished your isolation period, you are not required to quarantine or retest unless you display symptoms. You can check here for updates.
As of April 9, there were no statewide travel restrictions in South Dakota. Some routes through Native American lands might be closed. Check here for updates.
This is a sculpture of Rosa Parks at the National Civil Rights Museum at the Lorraine Motel In Memphis. The museum has reopened.
As of April 9, there were no statewide travel restrictions in Utah, though there is a statewide mask mandate. Check here for updates.
UPDATE: Vermont has issued updated travel guidance, effective April 9, for its phased reopening. Fully vaccinated travelers do not need to test or quarantine. Unvaccinated people must get a PCR test for Covid-19 taken no more than three days upon arrival. If the result is negative, no quarantine is required. There is additional guidance for international travelers and returning residents. Check here for updates.
George Washington's Mount Vernon Estate is open with Covid-19 safety protocols in place.
Drew Angerer/Getty Images
As of April 9, there were no statewide travel restrictions in Virginia. The state suggests getting tested one to three days before travel and again three to five days after you return. Check here for updates.
Visitors are asked to get a test within 72 hours of traveling, and if the test is positive, don't travel. A PCR test is preferred over antigen test. If you're visiting DC for more than three days, you are asked to limit activities until you get a second test three to five days after your arrival. If that result is negative, you can expand what you do. There are notable exceptions that don't require testing:
-- If you have been fully vaccinated within 90 days and do not have Covid-19 symptoms.
-- If you have tested positive for Covid-19 within the past 90 days and don't have symptoms now.
-- If you're from Maryland, Virginia, North Dakota or Hawaii.
On clear days, Mount Rainier in Washington can be seen from many miles away.
As of April 9, there were no travel restrictions in Washington state. Gov. Jay Inslee is encouraging visitors to follow CDC guidelines. Check here for details.
As of April 9, there were no statewide travel restrictions. However, the state is discouraging nonessential travel. Check here for updates.