What must be done if the frequency of sensitivity testing is extended to 5 years?

Normally, smoke detector sensitivity testing is requiredevery two years, butNFPA 72 allows extension up to five yearsif thedetectors have not experienced frequent nuisance alarmsand accuraterecords of performanceare maintained.

NFPA 72 (2022), Section 14.4.4.3.2:

“Where detectors are cleaned and maintained and where records of nuisance alarms and changes in detector locations are kept, the sensitivity testing interval shall be permitted to be extended to 5 years.”

Keeping a log of nuisance alarms helps assess the reliability of the detectors over time.

Correct answer: C. Records of nuisance alarms shall be maintained