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Fire code

Sprinkler inspection, testing and maintenance

This information outlines National Fire Protection Association (NFPA) requirements for fire sprinkler system internal pipe inspections and obstruction investigations.

Applicable standard

The 2011 edition of NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems.

Background

NFPA 25 contains requirements for annual inspections, internal pipe inspections , and obstruction investigations. However, some have been confused about what is actually required for these various activities.

Questions?

You can email us with your Minnesota State Fire Code questions. Code staff monitor this email address ​regularly and will respond to your question. During busier times, it may take up to a week before we are able to respond. If you don't hear back from us after one week, please let us know. Thanks for your patience.