Cal. Health & Safety Code § 1743.2

(a) “Private duty nursing agency” means a private or public organization, including, but not limited to, any partnership, corporation, political subdivision of the state, or other government agency within the state, that provides, or arranges for the provision of, private duty nursing services, as described in Section 1743.3.
(b) “Private duty nursing services” means skilled nursing services provided on a shift basis for patients who require individual and continuous nursing care, and that meets all of the following requirements:
1. (1) Is provided by a registered nurse or a licensed vocational nurse, except that any person accepted for service whose care requires medical orders shall be under the care of a physician, dentist, podiatrist, or other licensed practitioner within his or her scope of practice.
2. (2) Is provided to the patient in his or her temporary or permanent place of residence or other community-based setting and includes, one or both of the following locations:
  1. (A) The patient’s home.
  2. (B) Outside of the patient’s home, as necessitated by normal life activities.