MJR: Here the title and scope:

"NFPA 31
Standard for the
Installation of Oil-Burning Equipment
2001 Edition

1.1 Scope.
1.1.1
This standard shall apply to the installation of stationary oil-burning equipment and appliances, including but not limited to industrial-, commercial-, and residential-type steam, hot water, or warm air heating plants; domestic-type range burners and space heaters; and portable oil-burning equipment. This standard shall also apply to all accessory equipment and control systems, whether electric, thermostatic, or mechanical, and all electrical wiring connected to oil-fired equipment.
1.1.2
This standard shall also apply to the installation of oil storage and supply systems connected to oil-fired equipment.
1.1.3
This standard shall also apply to those multi-fueled appliances in which fuel oil is one of the optional fuels."

PS: Thanks spyder


Joe Tedesco, NEC Consultant