With foreign suppliers it's voluntary, but for domestic it would be required.
On November 9th, 2017. See this statement in context.
On November 9th, 2017. See this statement in context.
November 9th, 2017 / 10:05 a.m.
President, Canada Border Services Agency
With foreign suppliers it's voluntary, but for domestic it would be required.
See context to find out what was said next.