I got certified through the hospital I work at. it was a week of classes including de-escalation techniques and proper nursing procedures.
after the week of classes you needed a week of training within the unit having to get a bunch of things signed off from a preceptor. Then take my paperwork the Maryland Board of Nursing to get officially certified which cost like 20 bucks i believe. and that’s it.
I just got recertified over the summer and i just had to attend a first aid class and a few other simple ones and send them to the board of nursing and they did it online :)