Gas Technician IIA HVAC 9054 Email to a Friend Our Gas Technician IIA course complies with the Technical Standards and Safety Authority (TSSA) training curriculum for the Gas Technician II certification and includes modules 10 through 17. Prerequisite(s) You must have completed our HVAC 9052 Gas Technician III course or have a Gas Technician III licence. Contact Information 416-415-5000, ext. 4861 email@example.com Course Section(s) Available Class dates and registration for the upcoming year (September 2017 to August 2018) will be available on this website in early July 2017. Please visit this page again at that time. Some courses require you to purchase a textbook. The cost of the textbook is not included in the course fee unless otherwise indicated. If there is a textbook assigned for this course, it will be listed on the bookstore website.