All assignments of leasehold rights, whether total, partial or for security purposes, must be approved in writing by the department. Department approval of assignments may be conditioned upon a number of factors including rental adjustment; insurance coverage adjustment; renegotiation of improvement ownership; or changes in authorized land use. The department may require assurance of the performance capability of the proposed assignee by any feasible means, including the filing of an acceptable surety arrangement.

An assignment will not be considered to be a termination of the lease within the meaning of RCW 79.01.092.