Some examples of depreciable assets are:

1. (1) Buildings, meaning the basic structure or shell and additions to it.

2. (2) Equipment such as elevators, heating system, and air conditioning system that are attached to a building and characterized by:

   1. (a) An economic useful life of at least three years but shorter than the life of the building to which it is attached;
   2. (b) Incapable of being removed from the building to which it is attached;
   3. (c) A unit cost sufficiently large enough to justify ledger control; and
   4. (d) A physical size and identity that makes control by identification tags possible.
3. (3) Equipment not attached to buildings.
4. (4) Land improvements such as paving, tunnels, underpasses, on-site sewer and water lines, parking lots, shrubbery, fences, wall, etc., where replacement is the responsibility of the provider.
5. (5) Leasehold improvements and additions made by the lessee belong to the lessor after the lease expires.

[Statutory Authority: RCW 71A.20.140. WSR 01-10-013, § 388-835-0490, filed 4/20/01, effective 5/21/01.]