Twinning - Sister Cities 

Calgary, AB - Sister Cities Policy
The purpose of this policy is to provide the selection and evaluation process for establishing and reviewing Sister City relationships. (2005). Document (PDF, 256 KB) 

Halifax Regional Municipality, NS – Twinning Policy International and Canadian protocol
A protocol to enable the municipality to respond to requests in a timely and professional manner from International and Canadian cities seeking to be a "twin." Document (PDF, 132KB)