29 CP 2020 ANNUAL REPORT As of December 31, 2020, CP owned and leased the following units of intermodal equipment: Intermodal equipment Owned Leased Total Average Age (in years) Containers 8,150 —  8,150 7 Chassis 6,374 109 6,483 12 Total intermodal equipment 14,524 109 14,633 9 CP owns and operates a multi-building campus in Calgary encompassing the head office building, a data centre, training facility and other office and operational buildings. The Company's main dispatch centre is located in Calgary, and is the primary dispatching facility in Canada. Rail traffic controllers coordinate and dispatch crews, and manage the day-to-day locomotive management along the network, 24 hours a day, and seven days a week. The operations centre has a complete backup system in the event of any power disruption.  In addition to fully operational redundant systems, CP has a fully integrated Business Continuity Centre, should CP's operations centre be affected by any natural disaster, fire, cyber-attack or hostile threat. CP also maintains a secondary dispatch centre located in Minneapolis, where a facility similar to the one in Calgary exists. It services the dispatching needs of locomotives and train crews working in the U.S.  The Company incurs expenditures to expand and enhance its rail network, rolling stock and other infrastructure. These expenditures are aimed at improving efficiency and safety of our operations. Such investments are also an integral part of the Company's multi-year capital program and support growth initiatives. For further details, refer to Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, Liquidity and Capital Resources. Refer to Item 8. Financial Statements and Supplementary Data, Note 16 Debt, for information on the Company's finance lease obligations and assets held as collateral under these agreements. For further details, refer to Item 8. Financial Statements and Supplementary Data, Note 25 Commitments and contingencies. SEC regulations require the disclosure of any proceeding under environmental laws to which a government authority is a party unless the registrant reasonably believes it will not result in sanctions over a certain threshold. The Company uses a threshold of U.S. $1 million for the purposes of determining proceedings requiring disclosure. Not applicable. ITEM 4.  MINE SAFETY DISCLOSURES ITEM 3.  LEGAL PROCEEDINGS Encumbrances Headquarters Office Building Capital Expenditures