Twelve members of the Portland Fire Department Heavy Rescue unit earned national certifications in confined space rescues last week in training that included an exercise at the former Rufus Deering Lumber Yard on Commercial Street.  (David Harry / The Forecaster)

Training that could play a role in rescues from sewers or storage tanks was led by firefighters from around the country as part of a grant from the International Association of Fire Fighters. (David Harry / The Forecaster)