If on the basis of data derived from surveys and analyses which satisfy the requirements of sections 6048 and 6052, the public entity is unable to demonstrate that comparable replacement housing will be available as required, the head of the public entity shall determine whether to use the public entity's funds or the funds authorized for the project to provide such necessary replacement housing or to modify, suspend or terminate the project or undertaking.
Cal. Code Regs. Tit. 25, § 6122