California Code, Revenue and Taxation Code - RTC § 20505

(a) For purposes of this chapter was either (1) 62 years of age or older on the last day of the calendar year or approved fiscal year designated in subdivision (b) or (c) of Section 20503, whichever is applicable, or (2) blind or disabled, as defined in Section 12050 of the Welfare and Institutions Code on the last day of the calendar year or approved fiscal year designated in subdivision (b) of Section 20503, who was a member of the household, and who was either: (1) the owner and occupier of a residential dwelling on the last day of the year designated in subdivision (b) or (c) of Section 20503, or (2) the renter of a rented residence on or before the last day of the year designated in subdivision (b) of Section 20503. An individual who qualifies as an owner-claimant may not qualify as a renter-claimant for the same year.

(b) For purposes of Chapter 2 (commencing with Section 20581), Chapter 3 (commencing with Section 20625), Chapter 3.3 (commencing with Section 20639), and Chapter 3.5 (commencing with Section 20640) was a member of the household and either an owner-occupant, or a tenant stockholder occupant, or a possessory interestholder occupant, or a manufactured home owner-occupant, as the case may be, of the residential dwelling as to which postponement is claimed on the last day of the year designated in subdivision (d) of Section 20503, and who was (1) 62 years of age or older by December 31 of the fiscal year for which postponement is claimed, or (2) blind or disabled, as defined in Section 12050 of the Welfare and Institutions Code, at the time of application or on February 10 of the fiscal year for which postponement is claimed.