you can determine the currentness and completeness of a publication.

RAPID ACTION CHANGES (RACs)

Rapid action changes (RACs) are prepared to disseminate urgent essential data that directly involves hazards to personnel, an impairment to capability, an equipment or property damage, and/or maintenance capability, including that for high value and repairable items. RACs are issued in the following three formats:

Type IA - A message interim RAC issued by the cognizant Navy authority, preparing activity, or designated military office.

Type IB - A printed interim RAC issued by the cognizant Navy authorized preparing activity. Printed interim RACs are applicable to printed or microfilm manuals to cover urgent change data that is not capable of being transmitted by message, such as changes to illustrations and wiring diagrams that cannot adequately be safety of flight, an aircraft grounding, a mission covered in the text of a message.

Type II - A printed, formal RAC prepared as insert change pages. Formal RACs are to be prepared as a replacement for interim RACs (types IA and IB), as applicable to printed manuals only.

Interim RACs, message and printed copy, are maintained with the affected printed-copy

Figure 3-5.-Sample letter requesting initial outfitting lists for auditing purposes.