ARE, Sustainability assessment, Guidelines for federal agencies and other interested parties, 2008, App. D, p. 46 ([Internet, 2021-01-05](https://www.are.admin.ch/dam/are/en/dokumente/nhb_leitfaden_2008fuerbundesstellenundweitereinteressierte.pdf.download.pdf/sa_guidelines_2008forfederalagenciesandotherinterestedparties.pdf))