The Globe and Mail reports in its Wednesday edition Air Canada has begun cracking down on passengers with oversized carry-on bags as it prepares to start charging domestic passengers $25 for their first checked bags next month. The Globe's Greg Keenan writes the airline began a trial program at Toronto Pearson International airport on Tuesday to make sure carry-on bags meet the 10-kilogram weight limit and regulations on size (23 by 40 by 55 centimetres, and 16 by 33 by 43 centimetres for personal items). Extra personnel were added to departure gates in Toronto to help customers check in and make sure bags were the right size and weight. The change to a fee is widely expected to mean passengers will try to bring more carry-on bags. That in turn, could lead to delays in takeoffs as luggage gets measured and then sent out to be added to the belly of the plane instead of the cabin. If the carry-on luggage is too big, "The gate staff tag the bag, that bag has to be manually taken down the jetway stairs to the tarmac, into the plane," said airline consultant Robert Kokonis. "All that takes time." Mr. Kokonis said he is in favour of the move. He takes a carry-on bag, but sticks to the limits.