As the coronavirus outbreak continues to spread, some national restaurant chains are modifying how to serve its customers.

Note: Some services may be further altered based on certain states' decisions to temporarily close restaurants and bars.

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Applebee’s

The restaurant chain remains open around the country, with Applebee’s ramping up the frequency of cleaning, sanitizing and disinfecting surfaces inside the dining rooms, bathrooms and other high-touch areas. The chain also offers Applebee’s Carside To Go for car delivery, as well as home delivery.

Arby's

The meat-heavy chain has closed all in-dining service. Only drive-thru, takeout and delivery options remain available.

Bojangles'

On March 17, Bojanges' announced it would be temporarily suspending service in its dining rooms, and limiting orders to takeout, drive-thru and delivery, where available.

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Burger King

The hamburger chain has expanded its delivery offerings, and ensured its delivery partners “can handle increased demand for delivery,” a statement read. The dining rooms at locations around the country remain open with “best-in-class cleaning procedures,” including wiping down pin-pads, door handles and other surfaces.

Cheesecake Factory

The dining room at the Cheesecake Factory remains open, for now, with some added precautions, the chain shared on its website. Among them are rolling silverware in napkins, removing salt and pepper shakers from tables, as well as adding paper towels to restrooms instead of only using air dryers. Menus and pagers are also being sanitized. Delivery and take-out are also offered.

Chick-fil-A

Chick-fil-A has closed its dining room areas to customers. Locations are instead offering service via drive-thru, take-out or delivery.

Chipotle

The fast-casual Mexican Grill is offering free delivery starting Sunday and running through 3/31. (Chipotle did not name the coronavirus outbreak as the specific reason behind the free delivery.) Dining rooms are still open to customers.

Culver's

The chain restaurant announced it was closing all dining rooms and would only be available for drive-thru orders.

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Darden Restaurants

Olive Garden, Longhorn Steakhouse and other Darden Brands have all closed dining rooms, but remain open for delivery and, in some cases, curbside pick-up, or to-go.

Dunkin'

Dunkin' announced that it would be limiting service to drive-thru, carry-out or delivery as of March 17. In addition, locations were instructed to remove tables and chairs from both indoor and outdoor seating areas in an effort to discourage congregating.

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Firehouse Subs

Until further notice, Firehouse Subs has closed all dining rooms to customers, and instead offers to-go meals or delivery.

In-N-Out

The cult-favorite hamburger chain update its notice to read that most restaurants are open for drive-thru orders only. However, some dining rooms remain open.

Jack in the Box

Starting Monday, the fast-food chain has announced it is closing all dining room service and will only keep the drive-thru open for customers.

Jimmy John's

Jimmy John's is offering delivery and take-out options at its sandwich shops across the nation.

KFC

KFC is also offering free delivery through GrubHub, and has prepared for an increase in demand for both its take-out and delivery services. Meanwhile, the dining rooms are open, though some locations may temporarily close based on local requirements.

McDonald’s

On Tuesday, McDonald's announced that all US-owned locations would operate on drive-thru, walk-in takeout and delivery services only. The company also announced that all Playplaces would close as well.

Noodles & Company

The fast-casual chain has transition to pick-up and carryout only. All dining areas at restaurants nationwide have closed.

Panda Express

Panda Express closed all of its dining rooms as of March 16, though restaurants would still be open for mobile ordering, takeout or drive-thru services, where available. The chain had previously ramped up its cleaning protocols, and confirmed it was taking "temperature assessments" of employees reporting for work.

Papa John's

The pizza chain is offering takeout and delivery, including no contact delivery. Customers can select the No Contact Delivery option at checkout, and the delivery driver will leave the order at the door.

Smashburger

The hamburger chain has closed its dining area starting March 17, through March 31, and is available only for take-out and delivery, which is accessed via Smashburger's website, or various food delivery services.

Through April 28, the fast casual restaurant is matching each dollar donation added to Smashburger takeout order placed by phone, in-store, online or via the app, and will use it to provide meals to local firehouses, police stations and hospitals.

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Starbucks

Starbucks announced its U.S. stores will move to only to-go orders. Patrons are allowed to order at the counter, place mobile orders via the coffee chain’s app or order through the drive-thru. Locations around the country have temporarily removed tables and chairs, and some high-traffic stores have been shut down altogether.

Subway

The sandwich shop has remained open for takeout and delivery at stores nationwide.

Taco Bell

The chain’s CEO Mark King announced in a statement posted to Twitter that the restaurant is prepared to “serve our guests via drive-thru and delivery only.” However, the dining rooms have not yet been closed.

Wendy’s

Dining rooms have closed, effective immediately. The store will continue to operate its drive-thru, and remain open for take-out, pickup and delivery.

Whataburger

The Texas fast-food chain has decided to close its dining rooms as of March 17 at 3 p.m., but drive-thru lanes will remain open. The brand has instituted travel rules and restrictions for employees, as well as expanded cleaning procedures to protect customers.