Editor's Note — This story was current at the time of last publication on January 18 and will be updated periodically. However, you should still check with the official state websites before you commit to travel plans.
(CNN) — With cases of Covid-19 rapidly escalating in the United States, some states are having to update their rules and regulations in the new year. If you wish to travel to another state, it is important to be updated on the latest statewide regulations. While some US states still have no restrictions on leisure travel, all their official websites have important Covid-19 safety information, including possible face mask mandates in public settings.
This list is alphabetical and includes links where you should get more information and updates before you head out:
Denali is the highest mountain peak in North America and one of Alaska's most symbolic natural features.
NPS Photo/Daniel A. Leifheit
Visitors to Alaska should have a "qualifying Covid-19 test within 72 hours of departure" and upload their negative result to a Travel Declaration Form. You're then asked to observe strict social distancing for five days. A second test is suggested -- but not required -- between days 5 and 14. If you don't arrive with a negative Covid-19 result, you must take a Covid-19 test at the airport for $250 and quarantine at your own expense until you get the results. Check here for details and updates.
You can visit the boyhood home of Johnny Cash in Dyess, which is in northeastern Arkansas. Covid-19 restrictions limit tours to eight people.
Arkansas State University
California is under a regional stay-at-home order with many tourism-related businesses closed, including bars and museums. Nonessential travel is banned except in a region north of Sonoma County.
Travelers to California are directed to self-quarantine for 14 days upon arrival and avoid nonessential travel, which includes tourism. San Francisco has a mandatory, 10-day quarantine for anyone arriving from outside the nine-county Bay Area region. Check here for updates and details.
Pitkin County, Colorado (which includes ski resort Aspen/Snowmass), requires overnight visitors to complete a health affidavit and provide a negative Covid-19 test taken within 72 hours of arrival or face a mandatory 14-day quarantine.
Anyone traveling to Connecticut from anywhere other than New York, New Jersey or Rhode Island must self-quarantine for 10 days. You must also fill out a travel health form. Failure to do either could result in a $500 fine. You can be exempt from the quarantine with a negative Covid-19 test result taken within 72 hours prior to arrival or after receiving a negative result for a test taken after arrival. Check here for updates and details.
Visitors and locals like to take advantage of Wilmington's scenic Riverwalk.
Courtesy Greater Wilmington CVB
UPDATE: Hawaii has a complicated and evolving set of travel requirements and you can expect variation within the islands. You should read them thoroughly before you plan a trip and check often for updates. A brief summation:
According to the state: "Travelers (5 and older) wishing to bypass the 10-day mandatory quarantine must have their negative Covid-19 test results -- from a trusted testing partner -- prior to departure for the State of Hawaii. Travelers heading to Hawaii must upload their negative test result to the Safe Travels system prior to departure or, as an alternative to uploading, bring a hard copy of their negative test result with them when boarding their flight." The test must be taken within 72 hours of the final leg of departure.
Illinois has no travel restrictions, but the city of Chicago does. It places visitors in orange and yellow categories depending on the severity of the outbreak in a particular state.
TIM SLOAN/AFP/AFP/Getty Images
As of January 18, there are no statewide restrictions in Illinois, but visitors heading to Chicago have been placed in two categories -- orange and yellow. Anyone from an orange state must quarantine for 10 days or have a negative Covid-19 test result no more than 72 hours old to avoid the quarantine. There are no specific requirements for yellow states (which is currently only Hawaii). Check here for the list of states and more information before you travel.
While mostly open, Kansas has some rather specific quarantine requirements subject to frequent change. Check here for updates and more details.
The Bluegrass State has been discouraging out-of-state leisure travel since December 14. If you decide to go anyway, the state asks you to self-quarantine for 14 days. Read Kentucky's travel advisory here.
The St. Charles Streetcar in New Orleans is a longtime favorite of visitors.
TIMOTHY A. CLARY/AFP/Getty Images
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 New Hampshire and Vermont are exempt from these rules. Check here for updates.
Annapolis is Maryland's capital city and has a charming, maritime ambiance.
Courtesy CMT Group/National Trust for Historic Preservation
Otherwise, visitors must quarantine for 10 days or have proof of a negative Covid-19 test taken within 72 hours of arrival. You could be fined $500 a day if you don't comply. Check here as well for updates.
As of January 18, there were no statewide travel restrictions in Michigan, though some of the activities and venues vacationers might enjoy are not open or very limited in operations for now. Check here for updates.
The Stone Arch Bridge crosses the Mississippi River in downtown Minneapolis.
Dan Anderson/Courtesy of Meet Minneapolis
Visitors to Minnesota are asked to quarantine for 14 days or follow CDC guidelines on how to shorten a quarantine. Also note that many indoor tourism venues are either closed or have tight restrictions. Outdoor recreation is encouraged. Find out more: Explore Minnesota | Minnesota Department of Health.
As of January 18, there were no statewide travel restrictions in Montana. Travel restrictions might vary at Native American reservations. Check here for updates.
Nevada doesn't have travel restrictions -- so that means Vegas fans can visit. You'll still need to keep precautions in mind.
Ethan Miller/Getty Images North America/Getty Images
Visitors to New Hampshire are asked to self-quarantine for 10 days unless they are arriving from elsewhere in New England. People who get a negative Covid-19 test result on or after the seventh day of quarantining can break it early. Check here for updates.
UPDATE: Tourism is discouraged. Travelers not from 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.
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 required to self-quarantine for 14 days or the length of their stay in New Mexico, whichever is shorter. Exemptions from low-risk states are allowed, but as of January 18, no states were deemed low risk. Check here for updates.
Current guidelines allow travelers to New York to "test out" of the mandatory 10-day quarantine. Travelers from states that are contiguous with New York will continue to be exempt from the travel advisory. Covered travelers must continue to fill out the Traveler Health Form. You can check for important details on how to test out along with other updates.
As of January 18, there were no statewide travel restrictions in North Carolina. Check here for updates and details on closings and mandates.
The Rock & Roll Hall of Fame is in Cleveland.
Duane Prokop/Getty Images
Travelers visiting Ohio from states reporting positive testing rates of 15% or more are advised to self-quarantine for 14 days. This list updates each Wednesday. 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.
Get to know Pennsylvania's travel requirements before booking a room at a classic Philadelphia hotel such as the Hyatt Bellevue.
Courtesy Hyatt Bellevue Hotel
Travelers arriving in Pennsylvania are required to quarantine for 10 days or provide a negative Covid-19 test result that's less than 72 hours old upon arrival. Check here for updates.
Those traveling to Rhode Island from a state that has a positive testing rate of 5% or more must quarantine for 14 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.
Charleston, South Carolina, is famous for delicious seafood dishes.
Zero Point Zero
As of January 18, there were no statewide travel restrictions in South Dakota. Some routes through Native American lands might be closed. Check here for updates.
As of January 18, there were no statewide travel restrictions in Texas. The state urges people to wear a mask, saying "an itty-bitty piece of cloth goes a long way towards keeping yourself and others healthy." Check here for updates.
Winter has come Utah and places such as The Canyons.
Universal Images Group via Getty Images
As of January 18, there were no statewide travel restrictions in Utah, though there is a statewide mask mandate. Check here for updates.
Vermont has a mandatory 14-day quarantine upon arrival for nonessential travel. You have the option of taking a Covid-19 PCR test on day seven of the quarantine and ending the quarantine early with a negative reading. Check here for updates.
As of January 18, there were no statewide travel restrictions in Virginia. The state is urging people not to go to Washington, DC, and the Virginia suburbs for the inauguration. If you do travel to 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.
Mayor Muriel Bowser has extended a pause of various activities, many of interest to tourists, through January 22. Travel for the inauguration and tourism is discouraged. If you do go, travel requirements apply to anyone coming to the District from a state with more than 10 cases per 100,000 people. Visitors are asked to get tested 72 hours or less before coming to DC. If you're there for more than three days, you're asked to get tested again. Check here for updates and important details.
Washington state recommends a 14-day self-quarantine for interstate and international travel. Tourists are being discouraged from visiting. Check here for details, including information on the Covid variant.
The view of Harper's Ferry and the Potomac RIver from Maryland Heights is breathtaking.
As of January 18, there were no statewide travel restrictions. However, the state is discouraging nonessential travel. Check here for updates.