The Rialto Municipal Code's Title 9 (Public Peace, Safety and Morals) is the primary framework for nighttime curfew and related public-order rules; the publicly indexed Municode TOC surfaces Title 9 Division V 'Offenses Against Public Peace' (Ch. 9.50 Noise Control) but does not surface a standalone juvenile curfew chapter at the time of this review. California statewide truancy law — Cal. Education Code §48260 (truancy) — applies independently to school-hour absences. Cal. Welfare & Institutions Code §625 authorizes peace officers to take a minor into temporary custody for any local curfew violation; minors are usually released to a parent/guardian without prosecution on first offense. Rialto is policed by its own Rialto Police Department (not by County Sheriff contract).
Rialto's RMC Title 9 organizes Public Peace, Safety and Morals; the indexed Municode node 'DIVVOFAGPUPE' (Division V — Offenses Against Public Peace) and 'CH9.50NOCO' (Noise Control) are publicly surfaced, but a standalone juvenile curfew chapter was not located in the publicly indexed TOC. Many California cities pair a juvenile curfew with a daytime-loitering / truancy ordinance keyed to school hours; in Rialto's absence of a locally indexed chapter, enforcement defaults to: (1) Cal. Education Code §48260 et seq. truancy framework — minors absent from school without valid excuse may be cited; (2) Cal. Welfare & Institutions Code §625 — peace officer authority to detain for curfew violations and release to a parent; (3) Cal. Penal Code §272 — contributing to the delinquency of a minor, applicable to parents/guardians who knowingly allow chronic late-night activity; and (4) general nuisance / loitering enforcement under Cal. Penal Code §647(h). Rialto Police Department (the city's own department) administers enforcement. Residents and parents should verify the current Title 9 chapters on Municode and, if unclear, call Rialto PD non-emergency to confirm currently posted curfew hours and exceptions.
Where a local curfew chapter is in force, first offense is generally an infraction with a fine up to $100; subsequent offenses can escalate under Gov. Code §36900 / §53069.4. Truancy under Ed Code §48260 et seq. carries School Attendance Review Board (SARB) referral and, for habitual truants, parental fines up to $500 plus mandatory parent conferences.
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