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        ![]() LANTNAVFACENGCOM A&E GUIDE 
4/17/93 
Type A OMSI 
(1) Operation and Maintenance Manual 
(2) User Manual 
Type B OMSI (Do not use if maintenance and repair information is 
required) 
(1) Operating Manual 
(2) User Manual 
Type C OMSI 
(1) User Manual 
The degree of OMSI required will vary with the complexity of systems and 
type of facility. 
A. Facilities having complex systems such as the following would normally 
require a Type A OMSI: 
Petroleum, Oil and Lubricant (POL) Transfer/Loading Facilities 
Large/Complex Computer Operations Center 
Training Facilities with Complex Systems 
Aircraft Maintenance Shops 
Missile Assembly and Maintenance Shops 
Ship Maintenance Shops 
Laboratories 
Central Refrigeration Plants 
Medical Facilities 
Command Communication and Operation Centers 
Power Plants 
Heating Plants 
Industrial Waste and Sewage Treatment Plants 
Water Supply, Treatment and Storage, Potable 
Plating Shops 
B.  Less complex facilities where proper operation of the facility or system is 
critical a Type B OMSI may be appropriate as follows (may require Type A OMSI if 
maintenance and repair information is needed): 
8-33 
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