California Code, Revenue and Taxation Code - RTC § 17014

(1) Every individual who is in this state for other than a temporary or transitory purpose.

(2) Every individual domiciled in this state who is outside the state for a temporary or transitory purpose.

(1) Holds an elective office of the government of the United States, or

(2) Is employed on the staff of an elective officer in the legislative branch of the government of the United States as described in paragraph (1), or

(3) Holds an appointive office in the executive branch of the government of the United States (other than the armed forces of the United States or career appointees in the United States Foreign Service) if the appointment to that office was by the President of the United States and subject to confirmation by the Senate of the United States and whose tenure of office is at the pleasure of the President of the United States.

(1) For purposes of this subdivision, returns to this state, totaling in the aggregate not more than 45 days during a taxable year, shall be disregarded.

(2) This subdivision shall not apply to any individual, including any spouse described in paragraph (3), who has income from stocks, bonds, notes, or other intangible personal property in excess of two hundred thousand dollars ($200,000) in any taxable year in which the employment-related contract is in effect.In the case of an individual who is married, this paragraph shall be applied to the income of each spouse separately.

(3) Any spouse who is absent from the state for an uninterrupted period of at least 546 consecutive days to accompany a spouse who, under this subdivision, is considered outside this state for other than a temporary or transitory purpose shall, for purposes of this subdivision, also be considered outside this state for other than a temporary or transitory purpose.

(4) This subdivision shall not apply to any individual if the principal purpose of the individual's absence from this state is to avoid any tax imposed by this part.