The Liberal Party of Quebec (PLQ) offers free lunchtime childcare services at school, after a first year in office.
The measure would cost $367 million over five years.
Liberal leader Dominique Anglade made the announcement at a Laval school.
According to the PLQ, parents pay up to $1,400 just so that a child can eat lunch at school when he brings his own lunch.
If the Liberals take power, the measure would be implemented starting in 2023-2024.
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