CA Gov't Code Section 51152

(a)

No public agency or person shall locate a public improvement within a timberland production zone (TPZ) based primarily on a consideration of the lower cost of acquiring a land in a TPZ.

(b)

No public agency or person shall acquire timberland zoned as timberland production pursuant to this chapter for any public improvement if there is other land within or outside the TPZ on which it is reasonably feasible to locate the public improvement.