Another aspect of a “respiratory protection program” often times will include a PFT as part of the “medical evaluation”. For the most part, these PFTs are done by the location where the PLHP resides and most of the time they are done by “trained” personnel – but how many of us actually audit the service provider to ensure they hold the proper certifications? OSHA’s newly revised silica standards specifically require that PFT’s, as required under the silica standards, be administered by a technician who holds a current certificate from a National Institute for Occupational Safety and Health (NIOSH)-approved spirometry course.