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.[2] 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).[2] 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.[3] Generally, government managers have a "stewardship" duty to maintain capital assets under their control. See International Public Sector Accounting Standards for details.