Delta’s new emotional support animal policy takes effect

A dog named Jazzy waits in line with Delta Air Lines passengers at a ticket counter in Newark Liberty International Airport in Newark, N.J., on Aug. 8, 2016. The airline announced new rules Jan. 19, 2018, dealing with animals flying with passengers as service or emotional-support animals.

A dog named Jazzy waits in line with Delta Air Lines passengers at a ticket counter in Newark Liberty International Airport in Newark, N.J., on Aug. 8, 2016. The airline announced new rules Jan. 19, 2018, dealing with animals flying with passengers as service or emotional-support animals.

Delta Air Lines' new tighter restrictions on emotional support animals and service animals takes effect Thursday.

Atlanta-based Delta put in place the new policy effective March 1 after a passenger on one of its planes was attacked by a 70-pound emotional support dog last year. It also comes amid a rise in incidents involving animals in flights and a lack of certain regulations "creating unsafe conditions across U.S. air travel," according to Delta.

Here's how Delta describes its new policy: