All monies in the fund shall be expended exclusively for the purposes authorized by Chapter 3 of Division 3 of the Streets and Highways Code and of Article 5, Chapter 1, Division 1 of the Streets and Highways Code, as the same may now exist or from time to time hereafter be amended. (Ord. 417 § 5, 1985; Ord. 110 § 3, 1935)