CFR › Title 48 › Part 570 › §570.117-248 CFR §570.117-2Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkGSA is committed to the design, construction, operation, and maintenance of leased space that complies with all of the following Guiding Principles:(a)Employ Integrated Design Principles;(b)Optimize Energy Performance;(c)Protect and Conserve Water;(d)Enhance Indoor Environmental Quality; and(e)Reduce the Environmental Impact of Building Materials.