For "years" NFPA 20 required the fire pump controllers "locked rotor" trip based on 600% of the motor's full load current. This was because most typical ODP motors use on the average range of fire pumps, then and now, were code F or G so that's what the breakers were designed around.
Apparently some of the people in the industry "didn't get the memo" and started slapping energy efficient motors on fire pumps when they became popular a few years back. The higher locked rotor currents, 7 X 8 times FLA resulted in premature tripping times between the allotted 300% pick up and 600% specified in NFPA 20. As a result, the motors are now required to be listed. Now you get the same motor you had before, only paying a lot more for the listing.
There may have also been a few disasters shipped out the door with the first generation of motors used on variable frequency drives
that were not rated for them - bearings design, and winding temperature and insulation values. That's also now covered in 2010 NFPA 20, 18.104.22.168. It appears the "change" on this paragraph between 2007 and 2010 fell through the cracks.