In 2017 the Calgary Philatelic Society will host the annual BNAPS convention (BNAPEX) over the Labor Day weekend from 1-3 September. CALTAPEX, which is normally held the third weekend of October, will be combined with and held at the same time as BNAPEX. As a consequence, there will not be a separate CALTAPEX show in October.
All the information for BNAPEX/CALTAPEX is found on the BNAPS website. Click here to go to the webpage.