SECTIONS 8400-8404

8400.  A person that provides work authorized for a work of
improvement, including, but not limited to, the following persons,
has a lien right under this chapter:
 (a) Direct contractor.
 (b) Subcontractor.
 (c) Material supplier.
 (d) Equipment lessor.
 (e) Laborer.
 (f) Design professional.

8402.  A person that provides work authorized for a site improvement
has a lien right under this chapter.

8404.  Work is authorized for a work of improvement or for a site
improvement in any of the following circumstances:
 (a) It is provided at the request of or agreed to by the owner.
 (b) It is provided or authorized by a direct contractor,
subcontractor, architect, project manager, or other person having
charge of all or part of the work of improvement or site improvement.