Madrid has an important network of urban buses belonging to the EMT, which covers practically the entire city.
Most of the lines run from Monday to Friday between 06:00 and 23:30, with an interval of 4 to 15 minutes, depending on the time slot, and this frequency is reduced during the weekends. Except on Saturdays, Sundays and holidays whose service interval is from 7:00 a.m. to 11:00 p.m.
There are also night buses, known as “owls”, which cover twenty-six different routes, although they all depart from Plaza de la Cibeles. Its price is the same as daytime, although its frequency is lower. From Sunday to Friday and on holidays, the "owls" leave the head with an interval of 35 minutes, from 11:55 p.m. to 4:00 a.m. Then another bus passes at 05:10. On Saturdays and on the eve of holidays, the “owls” depart from Cibeles every 15 to 20 minutes, from 11:00 p.m. to 7:00 a.m.

All EMT buses have at least one space reserved for people with reduced mobility that can be occupied, not simultaneously, by:

A wheelchair
a simple stroller
a double stroller
Two shopping carts or suitcases

If you are a wheelchair user:

You must access and get off the bus through the ramp provided for this purpose, through the central or rear door. Remember that you must carry a valid transport ticket but that you are exempt from validating it on those buses that do not have a validator on the central platform.
The wheelchair must be placed in the opposite direction to the march and with the brake of the chair activated.
You can travel with an electric wheelchair (motorcycle type) as long as it is essential for your mobility and that it does not exceed a weight of 300 kilograms or the dimensions of the central platform.

For people with communication difficulties, the EMT has:

SMS service with voice recognition.
Accessible information panels located at stops that provide written and voice information through a push button (PRM).
All buses have a traveler information system through written and oral messages that inform about the time, next stop, destination, coincident lines and possible line diversions.

The EMT has a Customer Service Office (OAC) which can be accessed for any questions or queries.