(a) No precinct shall be established so that its boundary crosses the boundary of any supervisorial district, congressional district, senatorial district, Assembly district, board of equalization district, judicial district, incorporated city, ward, or city council district. To the extent possible, without subjecting the voter to significant inconvenience, precinct boundaries should not cross census tract or enumeration district lines.
(b) If, at any election, any precinct contains an insufficient number of qualified persons to make up a precinct board, the precinct may be consolidated with an adjoining precinct.