If a Joint Health and Safety Committee (JHSC) or Worker Trades Committee (WTC) is required on your site, you are legally obligated to identify the members by name, trade, and employer. IHSA provides a 17” x 22” poster printed back-to-back, one side for JHSC members and the other side for WTCs. Full colour. Double sided, Weather-resistant polystyrene. Revised 2020