  Results are presented from a survey for CIV associated absorption in a
complete low-frequency-selected sample of quasars. In agreement with previous
work, associated absorbers are most common in steep-spectrum and lobe-dominated
quasars, indicative of an anisotropic cloud distribution. Furthermore, we find
the strongest CIV absorption occurs in sources of small radio size, suggesting
that the absorbing clouds are destroyed or displaced as radio sources expand.
Evidence for dust in the clouds is also found, such that quasars with strong
absorption are systematically redder. Finally, we find no evidence for
evolution in the frequency or properties of the absorbers from z~0.7 to z~3.
