PLATTSBURGH The Plattsburgh-North Country Chamber of Commerce is sponsoring "24-Hour HazWoper Safety," a seminar to be held this Wednesday, Dec. 5, through Friday, Dec. 7, from 7:30 a.m. to 4 p.m. The seminar will be held daily at the chamber of commerce offices, 7061 State Route 9. Jeffery Malo from ATC & Associates will be presenting the class The three-day course satisfies the training requirements of OSHA's standard 29 CFR 1910.120 (e), Hazardous Waste Operations and Emergency Response. The course is designed for anyone involved in hazardous waste operations that must comply with training requirements and is intended for workers who are on site only occasionally for a specific limited task and who are unlIkely to be exposed above OSHA's Permissible Exposure Limits and/or for for workers regularly on site who work in areas which have been monitored and fully characterized indicating exposures are below PELs. Space is limited and advance registration is requIred at $45 per person. The cost includes continental breakfast and lunch. For more information, contact the chamber at 563-1000.