2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/2894I present the current state of knowledge about narrow (<500 km/s) ultraviolet absorption that is intrinsic to QSOs. I consider interpretations in the context of the accretion-disk/wind scenario of QSOs.6 pages total, 2 tables, 1 figure; To appear in Mass Outflow in Active Galactic Nuclei; New Perspectives, Eds D.M. Crenshaw, S.B. Kraemer, and I.M. GeorgeAstrophysicstext