These items should also be properly defined level of person-in-charge to approve the transactions (e.g. investment decisions amounting to 1M USD will require approval of the Board, contracts amounting to 500K USD will require approvals of the Finance and Accounting Director and GM, etc.).
The Delegation of Authority matrix should be reviewed and updated at least once a year and must be approved by the Board. Approved matrix is to be distributed to key personnel for proper implementation.