OSHA Requires Dilligent Inspections
Inspection, maintenance and testing
The employer shall be responsible for the inspection, maintenance and testing of all portable fire extinguishers in the workplace.
Portable extinguishers or hose used in lieu thereof under paragraph (d)(3) of this section shall be visually inspected monthly.
The employer shall assure that portable fire extinguishers are subjected to an annual maintenance check. Stored pressure extinguishers do not require an internal examination. The employer shall record the annual maintenance date and retain this record for one year after the last entry or the life of the shell, whichever is less. The record shall be available to the Assistant Secretary upon request.