Thanks for the info!

Yes when I looked further, I see that my book has the following:

Postscript

The reorganisation of 1954.

As a result of the Kennedy Report on the Reserve Army, a reorganisation took place late in 1954, which involved a transfer of the responsibility for antitank defence to the Royal Canadian Armoured Corps, a consequent increase in the number of armoured regiments, the conversion of some units, and the amalgamation or disbandment of others.

Scottish units affected were as follows: (Several are mentioned including)

The North Nova Scotia Highlanders, the Pictou Highlanders (Motor) and 89th Light Anti-Aircraft Battery, to form the 1st Battalion The Nova Scotia Highlanders, with HQ at Truro, Nova Scotia.

The Cape Breton Highlanders have been re-designated the 2nd Battalion The Nova Scotia Highlanders, with HQ at Sidney, Nova Scotia.

Is it still that way?

Do both battalions wear the same uniform?