Step-by-step procedures to regain normalcy in the event of a major earthquake is PRIMARILY covered...

 Disaster Recovery Plan (DRP):

A DRP provides detailed, step-by-step procedures for restoring systems and operations after a disaster, such as a major earthquake. The focus is on IT systems and critical infrastructure.

 Comparison with Other Plans:

While a Business Continuity Plan (BCP) addresses broader organizational operations, the DRP specifically targets technical recovery.

 Supporting Reference:

CCISO materials highlight DRP as the primary tool for regaining IT operational normalcy after a disaster.