Sec. 42.1  Scope of the regulations in this part.

    (a) The regulations in this part apply to all accounts, records, 
memoranda, documents, papers, and correspondence prepared by or on 
behalf of the carrier as well as those which come into its possession in 
connection with the acquisition of property, such as by purchase, 
consolidation, merger, etc.
    (b) The regulations in this part shall not be construed as requiring 
the preparation of accounts, records, or memoranda not required to be 
prepared by other regulations, such as the Uniform System of Accounts, 
except as provided hereinafter.
    (c) The regulations in this part shall not be construed as excusing 
compliance with any other lawful requirement for the preservation of 
records.