I did a better google search and got my own question answered, if anyone is curious:
d. Operational Bills - set forth policies and procedures in such areas as the boat bill, civil disaster, cold weather, darken ship, EMCON, etc.
STATE THE VARIOUS CONDITIONS OF READINESS AND THEIR PURPOSE:
Condition I - General Quarters, all hands at battle stations
Condition II - Modified General Quarters, used in large ships to permit some relaxation among personnel
Condition III - Wartime Cruising, generally one third of the crew is on watch, and strategic stations are
manned or partly manned. (e.g. weapons)
Condition IV - Optimum Peacetime Cruising, provides adequate watch manning, provides personnel economy. It
is normal peacetime cruising condition.
Condition V - Not normally a condition, IN-PORT ROUTINE.