Section 6451 Of Article 6. Records From California Financial Code >> Division 2. >> Chapter 3. >> Article 6.

. (a) Except as provided in subdivision (b), each agency of an association, as defined in Section 6551, shall keep an original record of each transaction of business completed on behalf of the association at the agency.
  (b) Records of transactions are not required to be maintained at the agency if they are maintained at the association's home office or branch office.