Cal. Health & Safety Code § 17926

(a) An owner of a dwelling unit intended for human occupancy shall install a carbon monoxide device, approved and listed by the State Fire Marshal pursuant to Section 13263, in each existing dwelling unit having a fossil fuel burning heater or appliance, fireplace, or an attached garage, within the earliest applicable time period as follows:
1. (1) For all existing single-family dwelling units intended for human occupancy on or before July 1, 2011.
2. (2) For all existing hotel and motel dwelling units intended for human occupancy on or before January 1, 2017.
3. (3) For all other existing dwelling units intended for human occupancy on or before January 1, 2013.
(b) With respect to the number and placement of carbon monoxide devices, an owner shall install the devices in a manner consistent with building standards applicable to new construction for the relevant type of occupancy or with the manufacturer’s instructions, if it is technically feasible to do so.
(c)
1. (1) Notwithstanding Section 17995, and except as provided in paragraph (2), a violation of this section is an infraction punishable by a maximum fine of two hundred dollars ($200) for each offense.
2. (2) Notwithstanding paragraph (1), a property owner shall receive a 30-day notice to correct. If an owner receiving notice fails to correct within that time period, the owner may be assessed the fine pursuant to paragraph (2).
(d) No transfer of title shall be invalidated on the basis of a failure to comply with this section, and the exclusive remedy for the failure to comply with this section is an award of actual damages not to exceed one hundred dollars ($100), exclusive of any court costs and attorney’s fees. This subdivision is not intended to affect any duties, rights, or remedies otherwise available at law.
(e) A local ordinance requiring carbon monoxide devices may be enacted or amended if the ordinance is consistent with this chapter.
(f) On or before July 1, 2015, the department shall submit for adoption and approval pursuant to Chapter 4 (commencing with Section 18935) of Part 2.5, building standards for the installation of carbon monoxide detectors in hotel and motel dwelling units intended for human occupancy. In developing these standards, the department shall do both of the following:
1. (1) Convene and consult a stakeholder group that includes members with expertise in multifamily dwellings, lodging, maintenance, and construction.
2. (2) Review and consider the most current national codes and standards available related to the installation of carbon monoxide detection.
(g) For purposes of this section and Section 17926.1, “dwelling unit intended for human occupancy” has the same meaning as that term is defined in Section 13262.