July 28 (Reuters) - Nav Canada NAVCA.UL
* Nav Canada announces ratification of collective agreement with PIPSC
* Nav Canada - Two year agreement covers period May 1, 2017 to April 30, 2019 and provides for wage increases in each of two years.
July 28 (Reuters) - Nav Canada NAVCA.UL
* Nav Canada announces ratification of collective agreement with PIPSC
* Nav Canada - Two year agreement covers period May 1, 2017 to April 30, 2019 and provides for wage increases in each of two years.