RA Division - Defence Communications Division New! CanadaBuys is the new official source for Government of Canada tender and award notices. This means you can now search for and bid on tender opportunities posted on CanadaBuys. Suppliers register in SAP Ariba today! Register now to ensure you transition to doing business with the new Government of Canada procurement service. Find out how to get started. Contacts for Goods and Services Identification Number (GSIN) Codes Contacts for GSIN CodesProcurement Division CodeRADivision Name and Contact PageDefence Communications DivisionGSIN codes under this procurement division