# § 438. Repairs and improvements; how made
Any and all repairs, improvements, changes, and alterations in the grounds, buildings, and other appurtenances to the reservation shall be made only according to detailed plans which shall be approved by the Secretary of the Interior, and all such repairs, improvements, or alterations shall be made at the expense of the United States, and all such improvements, together with the reservation itself, shall become and remain permanently the property of the United States.
---
**Source Credit**: (May 26, 1914, ch. 100, 38 Stat. 382; Mar. 3, 1925, ch. 425, 43 Stat. 1109; Ex. Ord. No. 6166, § 2, June 10, 1933; Ex. Ord. No. 6228, § 1, July 28, 1933.)
## Editorial Notes
### Codification
This section and sections 437, 439, and 440 of this title were derived from act . See Codification note set out under .
## Statutory Notes and Related Subsidiaries
### Termination of War and Emergencies
Termination of state of war and national emergencies, see note set out under .
## Executive Documents
### Transfer of Functions
Transfer of administrative functions of park, see note set out under .