I know that over the years there has been an EXCELLENT BOOK written by a guy named James Griffinths, who I believe is an HONORARY Deputy Chief within the FDNY.
That book, the latest version being the FDNY Operational Reference Book - 11th edition, was released in April, 2017.
There are facts and details of just about any question regarding the latest apparatus, equipment, tactics, policies, etc etc of the FDNY, including FDNY/EMS.
I believe one of the places it can be purchased is through the FDNY Foundation, the official non profit organization of the FDNY.
The address is:
FDNY Foundation
9 Metro Tech Center
#5E-9
Brooklyn, NY 11201
Phone (718) 999-0779
Web Site:
www.fdnyfoundation.org