By Cris Best (January 15, 2024, 11:14 AM EST) -- The Ontario Addiction Treatment Centres (OATC) is a private organization dedicated to aiding long-term sobriety from illegal substances. Recently, OATC requested relief from approximately $1,000,000 in GST/HST paid during the 2007 to 2012 taxation years for certain drug testing reagents (the test kits)....