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Common examples: control-valve checks range from weekly to monthly or quarterly depending on supervision; some gauges and alarms are checked monthly, quarterly, or semiannually; annual system checks and five-year internal assessments apply to specific components.

The exact schedule depends on wet/dry/preaction design, water-supply components, and supervision.

Typically annual: inspect and operate private hydrants. Some private fire-main components also require five-year internal assessments; flow-test schedules depend on the purpose, local requirements, and system design.

Typically annually: test fire-protection backflow preventers, with a qualified tester, in line with local water-authority rules and the device’s listing.

Requirements and reporting schedules vary by jurisdiction and assembly type; verify the schedule with your local water provider or AHJ.

Often: semiannual visual inspections and annual functional tests for many devices. Some initiating, notification, and control components have different intervals under NFPA 72.

Device type and the applicable NFPA 72 table determine the schedule.

Common test schedule: monthly functional test for at least 30 seconds and an annual test for 90 minutes for emergency lighting equipment, subject to the adopted Life Safety Code and system type.

Monthly: visual inspection. Annually: maintenance by a qualified provider. Internal maintenance and hydrostatic testing are scheduled at longer intervals based on extinguisher type.

Commercial kitchen hood systems: inspection and maintenance at least every six months. Clean-agent, foam, and other suppression systems use their own standards and component-specific schedules.

Weekly or monthly: no-flow (churn) tests, depending on pump type and installation. Annually: flow testing. Frequency and qualified-person requirements vary by configuration.