How is the rate calculated? Natasha Updated August 03, 2023 14:15 Follow Our system looks at your customer address and charges the appropriate tax based on the province. Related articles Are there special national ATD membership rates for chapter leaders? Where can I find the learning objectives and syllabus? How do I access my digital materials? What are the program completion requirements? What is ATD’s attendance policy, and what should I do if I need to miss time from my program?