California Code, Health and Safety Code - HSC § 12700

(1) A person who possesses a gross weight, including packaging, of less than 25 pounds of unaltered dangerous fireworks, as defined in Section 12505, is guilty of a misdemeanor, and upon conviction shall be punished by a fine of not less than one thousand dollars ($1,000) or more than two thousand dollars ($2,000), or by imprisonment in the county jail for not exceeding one year, or both that fine and imprisonment. Upon a second or subsequent conviction, a person shall be punished by a fine of not less than two thousand dollars ($2,000), or by imprisonment in a county jail not exceeding one year or by both that fine and imprisonment.

(2) A person who possesses a gross weight, including packaging, of not less than 25 pounds or more than 100 pounds of unaltered dangerous fireworks, as defined in Section 12505, is guilty of a public offense, and upon conviction shall be punished by imprisonment in a county jail for not more than one year, or by a fine of not less than two thousand dollars ($2,000) or more than ten thousand dollars ($10,000), or by both that fine and imprisonment.

(3) A person who possesses a gross weight, including packaging, of not less than 100 pounds or more than 5,000 pounds of unaltered dangerous fireworks, as defined in Section 12505, is guilty of a public offense, and upon conviction shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code or a county jail for not more than one year, or by a fine of not less than ten thousand dollars ($10,000) or more than twenty thousand dollars ($20,000), or by both that fine and imprisonment.

(4) A person who possesses a gross weight, including packaging, of more than 5,000 pounds of unaltered dangerous fireworks, as defined in Section 12505, is guilty of a public offense, and upon conviction shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code, or a county jail for not more than one year, or by a fine of not less than twenty thousand dollars ($20,000) or more than one hundred thousand dollars ($100,000), or by both that fine and imprisonment.