San Fernando, Cal., Code of Ordinances ch. 24 § 24-6

The following requirements apply to common interest developments: (1)
On or before July 7, 2022, the HOA shall provide to all owners of units a copy of this chapter and a written notice clearly stating that:
a. All new units are designated nonsmoking and smoking is prohibited in any new unit, including any associated private balcony, porch, deck, or patio, with the exception of enclosed areas of a detached unit, as of July 7, 2022;
b. All units are designated nonsmoking and smoking is prohibited in any unit, including any associated private balcony, porch, deck, or patio, with the exception of enclosed areas of a detached unit, as of July 7, 2024; and
c. All common areas, with the exception of designated smoking areas in compliance with section 24-2 (d) are designated nonsmoking and smoking is prohibited as of July 7, 2024;
d. The entire premises, including all units, any associated private balcony, porch, deck, or patio, and all common areas, are designated nonsmoking and smoking is prohibited anywhere on the premises effective as of July 7, 2027.
(2) As of July 7, 2022, every seller or lessor of a unit shall provide prospective buyers or renters, a copy of this chapter and a written notice clearly stating that:
a. All units are designated nonsmoking and smoking is prohibited in any unit, including any associated private balcony, porch, deck, or patio, with the exception of enclosed areas of a detached unit, as of July 7, 2024; and
b. All common areas, with the exception of designated smoking areas in compliance with section 24-2 (d) are designated nonsmoking and smoking is prohibited as of July 7, 2024; and
c. The entire premises, including all units, any associated private balcony, porch, deck, or patio, and all common areas, are designated nonsmoking and smoking is prohibited anywhere on the premises effective as of July 7, 2027.
(3) As of July 7, 2024, the HOA, or any person having legal ownership or control over common areas, shall post and maintain clear and unambiguous "No Smoking" signs in sufficient numbers and locations in the common interest development to make it obvious to a reasonable person that smoking is prohibited throughout the common interest development. The absence of signs shall not be a defense to a violation of any provision of this chapter.
(4) HOAs with knowledge of violations shall take reasonable steps to investigate and enforce the regulations, including a written notice to the resident of the HOA's knowledge of the violation, a request to cease the violation, and the course of action to be taken if the violation is not corrected. The HOA shall also distribute resources provided by the City and/or County of Los Angeles to assist with nicotine dependence, such as referrals to a quitline or other online resources.