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Recovery of past CAM overcharges depends on your specific lease terms, including any audit rights deadlines or ‘binding and conclusive’ provisions, and on applicable state law.

State statute of limitations periods apply to written contracts and range from 3 to 10 years. Your actual lookback window may be shorter based on your lease.

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  1. Home
  2. /Glossary
  3. /Fire Suppression System

Fire Suppression System

Last updated: April 2026

The network of sprinkler heads, risers, control valves, fire pumps, and alarm connections designed to detect and suppress fires in a commercial building. Routine testing and maintenance are CAM expenses, while system installations and major upgrades are capital expenditures.

Technical Definition

Fire suppression systems include wet-pipe and dry-pipe sprinkler networks, pre-action systems, fire pumps, standpipes, fire department connections (FDCs), flow switches, tamper switches, and associated alarm panel interfaces. NFPA 25 governs inspection, testing, and maintenance (ITM) requirements. Annual sprinkler inspections, quarterly valve tests, and five-year internal pipe inspections are operating expenses. Riser replacements, new sprinkler zone installations, and fire pump replacements are capital expenditures with useful lives of 20 to 40 years.

How This Gets Abused

A landlord replaced all fire suppression risers in a 30-year-old building at a cost of $275,000 and included the full amount in that year's CAM reconciliation as "fire protection maintenance." The riser replacement had a 30-year useful life and should have been amortized at roughly $9,200 per year.

Tenant Protection Tip

Fire suppression costs on your reconciliation should be consistent year to year. If you see a large spike, request the underlying invoices. Routine inspections and minor repairs are CAM-eligible, but system replacements and major upgrades must be amortized. Compare the charge against typical annual inspection costs for your building size.

Related Terms

Capital ExpenditureAmortizationUseful LifeOperating Expenses
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Related Resources

Detection RuleCommon Area Misclassification DetectionToolFree CAM Scan

Need to extract lease terms before your audit?

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This page provides general educational information. It is not legal advice and may not reflect the most current law in your state. Consult a licensed attorney for advice specific to your situation.

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