items acquired for resale in the ordinary course of operations or held for the purpose of physical consumption such as operating materials and supplies. The cost of a capital asset is its full life-cycle cost, including all direct and indirect costs associated with the planning, engineering, procurement including construction (purchase price and all other costs incurred to bring it to a form and location suitable for its intended use), operations and maintenance (including service contracts), and disposal. Capital assets may be acquired in different ways: through purchase, construction, or manufacture; through a lease-purchase or other capital lease, regardless of whether the title has passed to the Federal Government; through an operating lease for an asset with an estimated useful life of two years or more; or through an exchange. Capital assets include the environmental remediation of land to make it useful, leasehold improvements and land rights; assets owned by the Federal Government but located in a foreign country or held by others (such as Federal contractors, State and local governments, or colleges and universities); and assets whose ownership is shared by the Federal Government with other entities. Capital assets include not only the assets as initially acquired but also additions, improvements, modifications, replacements, rearrangements and reinstallations, and major improvements (but not ordinary repairs and maintenance). For State or Local governmental accounting in the United States with reference to public capital or infrastructure a capital asset is defined as any asset used in operations with an initial useful life extending beyond one reporting period. Generally, government managers have a "stewardship" duty to maintain capital assets under their control. See International Public Sector Accounting Standards for details. See Triple bottom line for widely used public sector accounting methods in which natural capital and social capital are characterized not as intangibles or externalities but as actual capital assets. In some income tax systems (for example, in the United States), gains and losses from capital assets are treated differently than other income. Sale of non-capital assets, such as inventory or stock of goods held for sale, generally is taxed in the same manner as other income. Capital assets generally include those assets outside the daily scope of business operations, such as investment or personal assets. The United States system defines a capital asset by exclusion. Capital assets include all assets except inventory of supplies or property held for sale (including subdivided real estate), depreciable